Reply Obj. 3: In perfect happiness the entire man is perfected, in the lower part of his nature, by an overflow from the higher. But in the imperfect happiness of this life, it is otherwise; we advance from the perfection of the lower part to the perfection of the higher part.

FOURTH ARTICLE [I-II, Q. 3, Art. 4]

Whether, If Happiness Is in the Intellective Part, It Is an Operation of the Intellect or of the Will?

Objection 1: It would seem that happiness consists in an act of the will. For Augustine says (De Civ. Dei xix, 10, 11), that man's happiness consists in peace; wherefore it is written (Ps. 147:3): "Who hath placed peace in thy end [Douay: 'borders']". But peace pertains to the will. Therefore man's happiness is in the will.

Obj. 2: Further, happiness is the supreme good. But good is the object of the will. Therefore happiness consists in an operation of the will.

Obj. 3: Further, the last end corresponds to the first mover: thus the last end of the whole army is victory, which is the end of the general, who moves all the men. But the first mover in regard to operations is the will: because it moves the other powers, as we shall state further on (Q. 9, AA. 1, 3). Therefore happiness regards the will.

Obj. 4: Further, if happiness be an operation, it must needs be man's most excellent operation. But the love of God, which is an act of the will, is a more excellent operation than knowledge, which is an operation of the intellect, as the Apostle declares (1 Cor. 13). Therefore it seems that happiness consists in an act of the will.

Obj. 5: Further, Augustine says (De Trin. xiii, 5) that "happy is he who has whatever he desires, and desires nothing amiss." And a little further on (6) he adds: "He is most happy who desires well, whatever he desires: for good things make a man happy, and such a man already possesses some good—i.e. a good will." Therefore happiness consists in an act of the will.

On the contrary, Our Lord said (John 17:3): "This is eternal life: that they may know Thee, the only true God." Now eternal life is the last end, as stated above (A. 2, ad 1). Therefore man's happiness consists in the knowledge of God, which is an act of the intellect.

I answer that, As stated above (Q. 2, A. 6) two things are needed for happiness: one, which is the essence of happiness: the other, that is, as it were, its proper accident, i.e. the delight connected with it. I say, then, that as to the very essence of happiness, it is impossible for it to consist in an act of the will. For it is evident from what has been said (AA. 1, 2; Q. 2, A. 7) that happiness is the attainment of the last end. But the attainment of the end does not consist in the very act of the will. For the will is directed to the end, both absent, when it desires it; and present, when it is delighted by resting therein. Now it is evident that the desire itself of the end is not the attainment of the end, but is a movement towards the end: while delight comes to the will from the end being present; and not conversely, is a thing made present, by the fact that the will delights in it. Therefore, that the end be present to him who desires it, must be due to something else than an act of the will.

This is evidently the case in regard to sensible ends. For if the acquisition of money were through an act of the will, the covetous man would have it from the very moment that he wished for it. But at the moment it is far from him; and he attains it, by grasping it in his hand, or in some like manner; and then he delights in the money got. And so it is with an intelligible end. For at first we desire to attain an intelligible end; we attain it, through its being made present to us by an act of the intellect; and then the delighted will rests in the end when attained.

So, therefore, the essence of happiness consists in an act of the intellect: but the delight that results from happiness pertains to the will. In this sense Augustine says (Confess. x, 23) that happiness is "joy in truth," because, to wit, joy itself is the consummation of happiness.

Reply Obj. 1: Peace pertains to man's last end, not as though it were the very essence of happiness; but because it is antecedent and consequent thereto: antecedent, in so far as all those things are removed which disturb and hinder man in attaining the last end: consequent inasmuch as when man has attained his last end, he remains at peace, his desire being at rest.

Reply Obj. 2: The will's first object is not its act: just as neither is the first object of the sight, vision, but a visible thing. Wherefore, from the very fact that happiness belongs to the will, as the will's first object, it follows that it does not belong to it as its act.

Reply Obj. 3: The intellect apprehends the end before the will does: yet motion towards the end begins in the will. And therefore to the will belongs that which last of all follows the attainment of the end, viz. delight or enjoyment.

Reply Obj. 4: Love ranks above knowledge in moving, but knowledge precedes love in attaining: for "naught is loved save what is known," as Augustine says (De Trin. x, 1). Consequently we first attain an intelligible end by an act of the intellect; just as we first attain a sensible end by an act of sense.

Reply Obj. 5: He who has whatever he desires, is happy, because he has what he desires: and this indeed is by something other than the act of his will. But to desire nothing amiss is needed for happiness, as a necessary disposition thereto. And a good will is reckoned among the good things which make a man happy, forasmuch as it is an inclination of the will: just as a movement is reduced to the genus of its terminus, for instance, "alteration" to the genus "quality."

FIFTH ARTICLE [I-II, Q. 3, Art. 5]

Whether Happiness Is an Operation of the Speculative, or of the Practical Intellect?

Objection 1: It would seem that happiness is an operation of the practical intellect. For the end of every creature consists in becoming like God. But man is like God, by his practical intellect, which is the cause of things understood, rather than by his speculative intellect, which derives its knowledge from things. Therefore man's happiness consists in an operation of the practical intellect rather than of the speculative.

Obj. 2: Further, happiness is man's perfect good. But the practical intellect is ordained to the good rather than the speculative intellect, which is ordained to the true. Hence we are said to be good, in reference to the perfection of the practical intellect, but not in reference to the perfection of the speculative intellect, according to which we are said to be knowing or understanding. Therefore man's happiness consists in an act of the practical intellect rather than of the speculative.

Obj. 3: Further, happiness is a good of man himself. But the speculative intellect is more concerned with things outside man; whereas the practical intellect is concerned with things belonging to man himself, viz. his operations and passions. Therefore man's happiness consists in an operation of the practical intellect rather than of the speculative.

On the contrary, Augustine says (De Trin. i, 8) that "contemplation is promised us, as being the goal of all our actions, and the everlasting perfection of our joys."

I answer that, Happiness consists in an operation of the speculative rather than of the practical intellect. This is evident for three reasons. First because if man's happiness is an operation, it must needs be man's highest operation. Now man's highest operation is that of his highest power in respect of its highest object: and his highest power is the intellect, whose highest object is the Divine Good, which is the object, not of the practical but of the speculative intellect. Consequently happiness consists principally in such an operation, viz. in the contemplation of Divine things. And since that "seems to be each man's self, which is best in him," according to Ethic. ix, 8, and x, 7, therefore such an operation is most proper to man and most delightful to him.

Secondly, it is evident from the fact that contemplation is sought principally for its own sake. But the act of the practical intellect is not sought for its own sake but for the sake of action: and these very actions are ordained to some end. Consequently it is evident that the last end cannot consist in the active life, which pertains to the practical intellect.

Thirdly, it is again evident, from the fact that in the contemplative life man has something in common with things above him, viz. with God and the angels, to whom he is made like by happiness. But in things pertaining to the active life, other animals also have something in common with man, although imperfectly.

Therefore the last and perfect happiness, which we await in the life to come, consists entirely in contemplation. But imperfect happiness, such as can be had here, consists first and principally, in an operation of the practical intellect directing human actions and passions, as stated in Ethic. x, 7, 8.

Reply Obj. 1: The asserted likeness of the practical intellect to God is one of proportion; that is to say, by reason of its standing in relation to what it knows, as God does to what He knows. But the likeness of the speculative intellect to God is one of union and "information"; which is a much greater likeness. And yet it may be answered that, in regard to the principal thing known, which is His Essence, God has not practical but merely speculative knowledge.

Reply Obj. 2: The practical intellect is ordained to good which is outside of it: but the speculative intellect has good within it, viz. the contemplation of truth. And if this good be perfect, the whole man is perfected and made good thereby: such a good the practical intellect has not; but it directs man thereto.

Reply Obj. 3: This argument would hold, if man himself were his own last end; for then the consideration and direction of his actions and passions would be his happiness. But since man's last end is something outside of him, to wit, God, to Whom we reach out by an operation of the speculative intellect; therefore, man's happiness consists in an operation of the speculative intellect rather than of the practical intellect.

SIXTH ARTICLE [I-II, Q. 3, Art. 6]

Whether Happiness Consists in the Consideration of Speculative Sciences?

Objection 1: It would seem that man's happiness consists in the consideration of speculative sciences. For the Philosopher says (Ethic. i, 13) that "happiness is an operation according to perfect virtue." And in distinguishing the virtues, he gives no more than three speculative virtues—"knowledge," "wisdom" and "understanding," which all belong to the consideration of speculative sciences. Therefore man's final happiness consists in the consideration of speculative sciences.

Obj. 2: Further, that which all desire for its own sake, seems to be man's final happiness. Now such is the consideration of speculative sciences; because, as stated in Metaph. i, 1, "all men naturally desire to know"; and, a little farther on (2), it is stated that speculative sciences are sought for their own sakes. Therefore happiness consists in the consideration of speculative sciences.

Obj. 3: Further, happiness is man's final perfection. Now everything is perfected, according as it is reduced from potentiality to act. But the human intellect is reduced to act by the consideration of speculative sciences. Therefore it seems that in the consideration of these sciences, man's final happiness consists.

On the contrary, It is written (Jer. 9:23): "Let not the wise man glory in his wisdom": and this is said in reference to speculative sciences. Therefore man's final happiness does not consist in the consideration of these.

I answer that, As stated above (A. 2, ad 4), man's happiness is twofold, one perfect, the other imperfect. And by perfect happiness we are to understand that which attains to the true notion of happiness; and by imperfect happiness that which does not attain thereto, but partakes of some particular likeness of happiness. Thus perfect prudence is in man, with whom is the idea of things to be done; while imperfect prudence is in certain irrational animals, who are possessed of certain particular instincts in respect of works similar to works of prudence.

Accordingly perfect happiness cannot consist essentially in the consideration of speculative sciences. To prove this, we must observe that the consideration of a speculative science does not extend beyond the scope of the principles of that science: since the entire science is virtually contained in its principles. Now the first principles of speculative sciences are received through the senses, as the Philosopher clearly states at the beginning of the Metaphysics (i, 1), and at the end of the Posterior Analytics (ii, 15). Wherefore the entire consideration of speculative sciences cannot extend farther than knowledge of sensibles can lead. Now man's final happiness, which is his final perfection cannot consist in the knowledge of sensibles. For a thing is not perfected by something lower, except in so far as the lower partakes of something higher. Now it is evident that the form of a stone or of any sensible, is lower than man. Consequently the intellect is not perfected by the form of a stone, as such, but inasmuch as it partakes of a certain likeness to that which is above the human intellect, viz. the intelligible light, or something of the kind. Now whatever is by something else is reduced to that which is of itself. Therefore man's final perfection must needs be through knowledge of something above the human intellect. But it has been shown (I, Q. 88, A. 2), that man cannot acquire through sensibles, the knowledge of separate substances, which are above the human intellect. Consequently it follows that man's happiness cannot consist in the consideration of speculative sciences. However, just as in sensible forms there is a participation of the higher substances, so the consideration of speculative sciences is a certain participation of true and perfect happiness.

Reply Obj. 1: In his book on Ethics the Philosopher treats of imperfect happiness, such as can be had in this life, as stated above (A. 2, ad 4).

Reply Obj. 2: Not only is perfect happiness naturally desired, but also any likeness or participation thereof.

Reply Obj. 3: Our intellect is reduced to act, in a fashion, by the consideration of speculative sciences, but not to its final and perfect act.

SEVENTH ARTICLE [I-II, Q. 3, Art. 7]

Whether Happiness Consists in the Knowledge of Separate Substances, Namely, Angels?

Objection 1: It would seem that man's happiness consists in the knowledge of separate substances, namely, angels. For Gregory says in a homily (xxvi in Evang.): "It avails nothing to take part in the feasts of men, if we fail to take part in the feasts of angels"; by which he means final happiness. But we can take part in the feasts of the angels by contemplating them. Therefore it seems that man's final happiness consists in contemplating the angels.

Obj. 2: Further, the final perfection of each thing is for it to be united to its principle: wherefore a circle is said to be a perfect figure, because its beginning and end coincide. But the beginning of human knowledge is from the angels, by whom men are enlightened, as Dionysius says (Coel. Hier. iv). Therefore the perfection of the human intellect consists in contemplating the angels.

Obj. 3: Further, each nature is perfect, when united to a higher nature; just as the final perfection of a body is to be united to the spiritual nature. But above the human intellect, in the natural order, are the angels. Therefore the final perfection of the human intellect is to be united to the angels by contemplation.

On the contrary, It is written (Jer. 9:24): "Let him that glorieth, glory in this, that he understandeth and knoweth Me." Therefore man's final glory or happiness consists only in the knowledge of God.

I answer that, As stated above (A. 6), man's perfect happiness consists not in that which perfects the intellect by some participation, but in that which is so by its essence. Now it is evident that whatever is the perfection of a power is so in so far as the proper formal object of that power belongs to it. Now the proper object of the intellect is the true. Therefore the contemplation of whatever has participated truth, does not perfect the intellect with its final perfection. Since, therefore, the order of things is the same in being and in truth (Metaph. ii, 1); whatever are beings by participation, are true by participation. Now angels have being by participation: because in God alone is His Being His Essence, as shown in the First Part (Q. 44, A. 1). It follows that contemplation of Him makes man perfectly happy. However, there is no reason why we should not admit a certain imperfect happiness in the contemplation of the angels; and higher indeed than in the consideration of speculative science.

Reply Obj. 1: We shall take part in the feasts of the angels, by contemplating not only the angels, but, together with them, also God Himself.

Reply Obj. 2: According to those that hold human souls to be created by the angels, it seems fitting enough, that man's happiness should consist in the contemplation of the angels, in the union, as it were, of man with his beginning. But this is erroneous, as stated in the First Part (Q. 90, A. 3). Wherefore the final perfection of the human intellect is by union with God, Who is the first principle both of the creation of the soul and of its enlightenment. Whereas the angel enlightens as a minister, as stated in the First Part (Q. 111, A. 2, ad 2). Consequently, by his ministration he helps man to attain to happiness; but he is not the object of man's happiness.

Reply Obj. 3: The lower nature may reach the higher in two ways. First, according to a degree of the participating power: and thus man's final perfection will consist in his attaining to a contemplation such as that of the angels. Secondly, as the object is attained by the power: and thus the final perfection of each power is to attain that in which is found the fulness of its formal object.

EIGHTH ARTICLE [I-II, Q. 3, Art. 8]

Whether Man's Happiness Consists in the Vision of the Divine Essence?

Objection 1: It would seem that man's happiness does not consist in the vision of the Divine Essence. For Dionysius says (Myst. Theol. i) that by that which is highest in his intellect, man is united to God as to something altogether unknown. But that which is seen in its essence is not altogether unknown. Therefore the final perfection of the intellect, namely, happiness, does not consist in God being seen in His Essence.

Obj. 2: Further, the higher the perfection belongs to the higher nature. But to see His own Essence is the perfection proper to the Divine intellect. Therefore the final perfection of the human intellect does not reach to this, but consists in something less.

On the contrary, It is written (1 John 3:2): "When He shall appear, we shall be like to Him; and [Vulg.: 'because'] we shall see Him as He is."

I answer that, Final and perfect happiness can consist in nothing else than the vision of the Divine Essence. To make this clear, two points must be observed. First, that man is not perfectly happy, so long as something remains for him to desire and seek: secondly, that the perfection of any power is determined by the nature of its object. Now the object of the intellect is "what a thing is," i.e. the essence of a thing, according to De Anima iii, 6. Wherefore the intellect attains perfection, in so far as it knows the essence of a thing. If therefore an intellect knows the essence of some effect, whereby it is not possible to know the essence of the cause, i.e. to know of the cause "what it is"; that intellect cannot be said to reach that cause simply, although it may be able to gather from the effect the knowledge that the cause is. Consequently, when man knows an effect, and knows that it has a cause, there naturally remains in the man the desire to know about the cause, "what it is." And this desire is one of wonder, and causes inquiry, as is stated in the beginning of the Metaphysics (i, 2). For instance, if a man, knowing the eclipse of the sun, consider that it must be due to some cause, and know not what that cause is, he wonders about it, and from wondering proceeds to inquire. Nor does this inquiry cease until he arrive at a knowledge of the essence of the cause.

If therefore the human intellect, knowing the essence of some created effect, knows no more of God than "that He is"; the perfection of that intellect does not yet reach simply the First Cause, but there remains in it the natural desire to seek the cause. Wherefore it is not yet perfectly happy. Consequently, for perfect happiness the intellect needs to reach the very Essence of the First Cause. And thus it will have its perfection through union with God as with that object, in which alone man's happiness consists, as stated above (AA. 1, 7; Q. 2, A. 8).

Reply Obj. 1: Dionysius speaks of the knowledge of wayfarers journeying towards happiness.

Reply Obj. 2: As stated above (Q. 1, A. 8), the end has a twofold acceptation. First, as to the thing itself which is desired: and in this way, the same thing is the end of the higher and of the lower nature, and indeed of all things, as stated above (Q. 1, A. 8). Secondly, as to the attainment of this thing; and thus the end of the higher nature is different from that of the lower, according to their respective habitudes to that thing. So then in the happiness of God, Who, in understanding his Essence, comprehends It, is higher than that of a man or angel who sees It indeed, but comprehends It not.

QUESTION 4

OF THOSE THINGS THAT ARE REQUIRED FOR HAPPINESS (In Eight Articles)

We have now to consider those things that are required for happiness: and concerning this there are eight points of inquiry:

(1) Whether delight is required for happiness?

(2) Which is of greater account in happiness, delight or vision?

(3) Whether comprehension is required?

(4) Whether rectitude of the will is required?

(5) Whether the body is necessary for man's happiness?

(6) Whether any perfection of the body is necessary?

(7) Whether any external goods are necessary?

(8) Whether the fellowship of friends is necessary?

FIRST ARTICLE [I-II, Q. 4, Art. 1]

Whether Delight Is Required for Happiness?

Objection 1: It would seem that delight is not required for happiness. For Augustine says (De Trin. i, 8) that "vision is the entire reward of faith." But the prize or reward of virtue is happiness, as the Philosopher clearly states (Ethic. i, 9). Therefore nothing besides vision is required for happiness.

Obj. 2: Further, happiness is "the most self-sufficient of all goods," as the Philosopher declares (Ethic. i, 7). But that which needs something else is not self-sufficient. Since then the essence of happiness consists in seeing God, as stated above (Q. 3, A. 8); it seems that delight is not necessary for happiness.

Obj. 3: Further, the "operation of bliss or happiness should be unhindered" (Ethic. vii, 13). But delight hinders the operation of the intellect: since it destroys the estimate of prudence (Ethic. vi, 5). Therefore delight is not necessary for happiness.

On the contrary, Augustine says (Confess. x, 23) that happiness is "joy in truth."

I answer that, One thing may be necessary for another in four ways. First, as a preamble and preparation to it: thus instruction is necessary for science. Secondly, as perfecting it: thus the soul is necessary for the life of the body. Thirdly, as helping it from without: thus friends are necessary for some undertaking. Fourthly, as something attendant on it: thus we might say that heat is necessary for fire. And in this way delight is necessary for happiness. For it is caused by the appetite being at rest in the good attained. Wherefore, since happiness is nothing else but the attainment of the Sovereign Good, it cannot be without concomitant delight.

Reply Obj. 1: From the very fact that a reward is given to anyone, the will of him who deserves it is at rest, and in this consists delight. Consequently, delight is included in the very notion of reward.

Reply Obj. 2: The very sight of God causes delight. Consequently, he who sees God cannot need delight.

Reply Obj. 3: Delight that is attendant upon the operation of the intellect does not hinder it, rather does it perfect it, as stated in Ethic. x, 4: since what we do with delight, we do with greater care and perseverance. On the other hand, delight which is extraneous to the operation is a hindrance thereto: sometimes by distracting the attention because, as already observed, we are more attentive to those things that delight us; and when we are very attentive to one thing, we must needs be less attentive to another: sometimes on account of opposition; thus a sensual delight that is contrary to reason, hinders the estimate of prudence more than it hinders the estimate of the speculative intellect.

SECOND ARTICLE [I-II, Q. 4, Art. 2]

Whether in Happiness Vision Ranks Before Delight?

Objection 1: It would seem that in happiness, delight ranks before vision. For "delight is the perfection of operation" (Ethic. x, 4). But perfection ranks before the thing perfected. Therefore delight ranks before the operation of the intellect, i.e. vision.

Obj. 2: Further, that by reason of which a thing is desirable, is yet more desirable. But operations are desired on account of the delight they afford: hence, too, nature has adjusted delight to those operations which are necessary for the preservation of the individual and of the species, lest animals should disregard such operations. Therefore, in happiness, delight ranks before the operation of the intellect, which is vision.

Obj. 3: Further, vision corresponds to faith; while delight or enjoyment corresponds to charity. But charity ranks before faith, as the Apostle says (1 Cor. 13:13). Therefore delight or enjoyment ranks before vision.

On the contrary, The cause is greater than its effect. But vision is the cause of delight. Therefore vision ranks before delight.

I answer that, The Philosopher discusses this question (Ethic. x, 4), and leaves it unsolved. But if one consider the matter carefully, the operation of the intellect which is vision, must needs rank before delight. For delight consists in a certain repose of the will. Now that the will finds rest in anything, can only be on account of the goodness of that thing in which it reposes. If therefore the will reposes in an operation, the will's repose is caused by the goodness of the operation. Nor does the will seek good for the sake of repose; for thus the very act of the will would be the end, which has been disproved above (Q. 1, A. 1, ad 2;Q. 3, A. 4): but it seeks to be at rest in the operation, because that operation is its good. Consequently it is evident that the operation in which the will reposes ranks before the resting of the will therein.

Reply Obj. 1: As the Philosopher says (Ethic. x, 4) "delight perfects operation as vigor perfects youth," because it is a result of youth. Consequently delight is a perfection attendant upon vision; but not a perfection whereby vision is made perfect in its own species.

Reply Obj. 2: The apprehension of the senses does not attain to the universal good, but to some particular good which is delightful. And consequently, according to the sensitive appetite which is in animals, operations are sought for the sake of delight. But the intellect apprehends the universal good, the attainment of which results in delight: wherefore its purpose is directed to good rather than to delight. Hence it is that the Divine intellect, which is the Author of nature, adjusted delights to operations on account of the operations. And we should form our estimate of things not simply according to the order of the sensitive appetite, but rather according to the order of the intellectual appetite.

Reply Obj. 3: Charity does not seek the beloved good for the sake of delight: it is for charity a consequence that it delights in the good gained which it loves. Thus delight does not answer to charity as its end, but vision does, whereby the end is first made present to charity.

THIRD ARTICLE [I-II, Q. 4, Art. 3]

Whether Comprehension Is Necessary for Happiness?

Objection 1: It would seem that comprehension is not necessary for happiness. For Augustine says (Ad Paulinam de Videndo Deum; [*Cf. Serm. xxxciii De Verb. Dom.]): "To reach God with the mind is happiness, to comprehend Him is impossible." Therefore happiness is without comprehension.

Obj. 2: Further, happiness is the perfection of man as to his intellective part, wherein there are no other powers than the intellect and will, as stated in the First Part (QQ. 79 and following). But the intellect is sufficiently perfected by seeing God, and the will by enjoying Him. Therefore there is no need for comprehension as a third.

Obj. 3: Further, happiness consists in an operation. But operations are determined by their objects: and there are two universal objects, the true and the good: of which the true corresponds to vision, and good to delight. Therefore there is no need for comprehension as a third.

On the contrary, The Apostle says (1 Cor. 9:24): "So run that you may comprehend [Douay: 'obtain']." But happiness is the goal of the spiritual race: hence he says (2 Tim. 4:7, 8): "I have fought a good fight, I have finished my course, I have kept the faith; as to the rest there is laid up for me a crown of justice." Therefore comprehension is necessary for Happiness.

I answer that, Since Happiness consists in gaining the last end, those things that are required for Happiness must be gathered from the way in which man is ordered to an end. Now man is ordered to an intelligible end partly through his intellect, and partly through his will: through his intellect, in so far as a certain imperfect knowledge of the end pre-exists in the intellect: through the will, first by love which is the will's first movement towards anything; secondly, by a real relation of the lover to the thing beloved, which relation may be threefold. For sometimes the thing beloved is present to the lover: and then it is no longer sought for. Sometimes it is not present, and it is impossible to attain it: and then, too, it is not sought for. But sometimes it is possible to attain it, yet it is raised above the capability of the attainer, so that he cannot have it forthwith; and this is the relation of one that hopes, to that which he hopes for, and this relation alone causes a search for the end. To these three, there are a corresponding three in Happiness itself. For perfect knowledge of the end corresponds to imperfect knowledge; presence of the end corresponds to the relation of hope; but delight in the end now present results from love, as already stated (A. 2, ad 3). And therefore these three must concur with Happiness; to wit, vision, which is perfect knowledge of the intelligible end; comprehension, which implies presence of the end; and delight or enjoyment, which implies repose of the lover in the object beloved.

Reply Obj. 1: Comprehension is twofold. First, inclusion of the comprehended in the comprehensor; and thus whatever is comprehended by the finite, is itself finite. Wherefore God cannot be thus comprehended by a created intellect. Secondly, comprehension means nothing but the holding of something already present and possessed: thus one who runs after another is said to comprehend [*In English we should say 'catch.'] him when he lays hold on him. And in this sense comprehension is necessary for Happiness.

Reply Obj. 2: Just as hope and love pertain to the will, because it is the same one that loves a thing, and that tends towards it while not possessed, so, too, comprehension and delight belong to the will, since it is the same that possesses a thing and reposes therein.

Reply Obj. 3: Comprehension is not a distinct operation from vision; but a certain relation to the end already gained. Wherefore even vision itself, or the thing seen, inasmuch as it is present, is the object of comprehension.

FOURTH ARTICLE [I-II, Q. 4, Art. 4]

Whether Rectitude of the Will Is Necessary for Happiness?

Objection 1: It would seem that rectitude of the will is not necessary for Happiness. For Happiness consists essentially in an operation of the intellect, as stated above (Q. 3, A. 4). But rectitude of the will, by reason of which men are said to be clean of heart, is not necessary for the perfect operation of the intellect: for Augustine says (Retract. i, 4) "I do not approve of what I said in a prayer: O God, Who didst will none but the clean of heart to know the truth. For it can be answered that many who are not clean of heart, know many truths." Therefore rectitude of the will is not necessary for Happiness.

Obj. 2: Further, what precedes does not depend on what follows. But the operation of the intellect precedes the operation of the will. Therefore Happiness, which is the perfect operation of the intellect, does not depend on rectitude of the will.

Obj. 3: Further, that which is ordained to another as its end, is not necessary, when the end is already gained; as a ship, for instance, after arrival in port. But rectitude of will, which is by reason of virtue, is ordained to Happiness as to its end. Therefore, Happiness once obtained, rectitude of the will is no longer necessary.

On the contrary, It is written (Matt. 5:8): "Blessed are the clean of heart; for they shall see God": and (Heb. 12:14): "Follow peace with all men, and holiness; without which no man shall see God."

I answer that, Rectitude of will is necessary for Happiness both antecedently and concomitantly. Antecedently, because rectitude of the will consists in being duly ordered to the last end. Now the end in comparison to what is ordained to the end is as form compared to matter. Wherefore, just as matter cannot receive a form, unless it be duly disposed thereto, so nothing gains an end, except it be duly ordained thereto. And therefore none can obtain Happiness, without rectitude of the will. Concomitantly, because as stated above (Q. 3, A. 8), final Happiness consists in the vision of the Divine Essence, Which is the very essence of goodness. So that the will of him who sees the Essence of God, of necessity, loves, whatever he loves, in subordination to God; just as the will of him who sees not God's Essence, of necessity, loves whatever he loves, under the common notion of good which he knows. And this is precisely what makes the will right. Wherefore it is evident that Happiness cannot be without a right will.

[Reply Obj. 1: Augustine is speaking of knowledge of truth that is not the essence of goodness itself.]

Reply Obj. 2: Every act of the will is preceded by an act of the intellect: but a certain act of the will precedes a certain act of the intellect. For the will tends to the final act of the intellect which is happiness. And consequently right inclination of the will is required antecedently for happiness, just as the arrow must take a right course in order to strike the target.

Reply Obj. 3: Not everything that is ordained to the end, ceases with the getting of the end: but only that which involves imperfection, such as movement. Hence the instruments of movement are no longer necessary when the end has been gained: but the due order to the end is necessary.

FIFTH ARTICLE [I-II, Q. 4, Art. 5]

Whether the Body Is Necessary for Man's Happiness?

Objection 1: It would seem that the body is necessary for Happiness. For the perfection of virtue and grace presupposes the perfection of nature. But Happiness is the perfection of virtue and grace. Now the soul, without the body, has not the perfection of nature; since it is naturally a part of human nature, and every part is imperfect while separated from its whole. Therefore the soul cannot be happy without the body.

Obj. 2: Further, Happiness is a perfect operation, as stated above (Q. 3, AA. 2, 5). But perfect operation follows perfect being: since nothing operates except in so far as it is an actual being. Since, therefore, the soul has not perfect being, while it is separated from the body, just as neither has a part, while separate from its whole; it seems that the soul cannot be happy without the body.

Obj. 3: Further, Happiness is the perfection of man. But the soul, without the body, is not man. Therefore Happiness cannot be in the soul separated from the body.

Obj. 4: Further, according to the Philosopher (Ethic. vii, 13) "the operation of bliss," in which operation happiness consists, is "not hindered." But the operation of the separate soul is hindered; because, as Augustine says (Gen. ad lit. xii, 35), the soul "has a natural desire to rule the body, the result of which is that it is held back, so to speak, from tending with all its might to the heavenward journey," i.e. to the vision of the Divine Essence. Therefore the soul cannot be happy without the body.

Obj. 5: Further, Happiness is the sufficient good and lulls desire. But this cannot be said of the separated soul; for it yet desires to be united to the body, as Augustine says (Gen. ad lit. xii, 35). Therefore the soul is not happy while separated from the body.

Obj. 6: Further, in Happiness man is equal to the angels. But the soul without the body is not equal to the angels, as Augustine says (Gen. ad lit. xii, 35). Therefore it is not happy.

On the contrary, It is written (Apoc. 14:13): "Happy [Douay: 'blessed'] are the dead who die in the Lord."

I answer that, Happiness is twofold; the one is imperfect and is had in this life; the other is perfect, consisting in the vision of God. Now it is evident that the body is necessary for the happiness of this life. For the happiness of this life consists in an operation of the intellect, either speculative or practical. And the operation of the intellect in this life cannot be without a phantasm, which is only in a bodily organ, as was shown in the First Part (Q. 84, AA. 6, 7). Consequently that happiness which can be had in this life, depends, in a way, on the body. But as to perfect Happiness, which consists in the vision of God, some have maintained that it is not possible to the soul separated from the body; and have said that the souls of saints, when separated from their bodies, do not attain to that Happiness until the Day of Judgment, when they will receive their bodies back again. And this is shown to be false, both by authority and by reason. By authority, since the Apostle says (2 Cor. 5:6): "While we are in the body, we are absent from the Lord"; and he points out the reason of this absence, saying: "For we walk by faith and not by sight." Now from this it is clear that so long as we walk by faith and not by sight, bereft of the vision of the Divine Essence, we are not present to the Lord. But the souls of the saints, separated from their bodies, are in God's presence; wherefore the text continues: "But we are confident and have a good will to be absent . . . from the body, and to be present with the Lord." Whence it is evident that the souls of the saints, separated from their bodies, "walk by sight," seeing the Essence of God, wherein is true Happiness.

Again this is made clear by reason. For the intellect needs not the body, for its operation, save on account of the phantasms, wherein it looks on the intelligible truth, as stated in the First Part (Q. 84, A. 7). Now it is evident that the Divine Essence cannot be seen by means of phantasms, as stated in the First Part (Q. 12, A. 3). Wherefore, since man's perfect Happiness consists in the vision of the Divine Essence, it does not depend on the body. Consequently, without the body the soul can be happy.

We must, however, notice that something may belong to a thing's perfection in two ways. First, as constituting the essence thereof; thus the soul is necessary for man's perfection. Secondly, as necessary for its well-being: thus, beauty of body and keenness of perfection belong to man's perfection. Wherefore though the body does not belong in the first way to the perfection of human Happiness, yet it does in the second way. For since operation depends on a thing's nature, the more perfect is the soul in its nature, the more perfectly it has its proper operation, wherein its happiness consists. Hence, Augustine, after inquiring (Gen. ad lit. xii, 35) "whether that perfect Happiness can be ascribed to the souls of the dead separated from their bodies," answers "that they cannot see the Unchangeable Substance, as the blessed angels see It; either for some other more hidden reason, or because they have a natural desire to rule the body."

Reply Obj. 1: Happiness is the perfection of the soul on the part of the intellect, in respect of which the soul transcends the organs of the body; but not according as the soul is the natural form of the body. Wherefore the soul retains that natural perfection in respect of which happiness is due to it, though it does not retain that natural perfection in respect of which it is the form of the body.

Reply Obj. 2: The relation of the soul to being is not the same as that of other parts: for the being of the whole is not that of any individual part: wherefore, either the part ceases altogether to be, when the whole is destroyed, just as the parts of an animal, when the animal is destroyed; or, if they remain, they have another actual being, just as a part of a line has another being from that of the whole line. But the human soul retains the being of the composite after the destruction of the body: and this because the being of the form is the same as that of its matter, and this is the being of the composite. Now the soul subsists in its own being, as stated in the First Part (Q. 75, A. 2). It follows, therefore, that after being separated from the body it has perfect being and that consequently it can have a perfect operation; although it has not the perfect specific nature.

Reply Obj. 3: Happiness belongs to man in respect of his intellect: and, therefore, since the intellect remains, it can have Happiness. Thus the teeth of an Ethiopian, in respect of which he is said to be white, can retain their whiteness, even after extraction.

Reply Obj. 4: One thing is hindered by another in two ways. First, by way of opposition; thus cold hinders the action of heat: and such a hindrance to operation is repugnant to Happiness. Secondly, by way of some kind of defect, because, to wit, that which is hindered has not all that is necessary to make it perfect in every way: and such a hindrance to operation is not incompatible with Happiness, but prevents it from being perfect in every way. And thus it is that separation from the body is said to hold the soul back from tending with all its might to the vision of the Divine Essence. For the soul desires to enjoy God in such a way that the enjoyment also may overflow into the body, as far as possible. And therefore, as long as it enjoys God, without the fellowship of the body, its appetite is at rest in that which it has, in such a way, that it would still wish the body to attain to its share.

Reply Obj. 5: The desire of the separated soul is entirely at rest, as regards the thing desired; since, to wit, it has that which suffices its appetite. But it is not wholly at rest, as regards the desirer, since it does not possess that good in every way that it would wish to possess it. Consequently, after the body has been resumed, Happiness increases not in intensity, but in extent.

Reply Obj. 6: The statement made (Gen. ad lit. xii, 35) to the effect that "the souls of the departed see not God as the angels do," is not to be understood as referring to inequality of quantity; because even now some souls of the Blessed are raised to the higher orders of the angels, thus seeing God more clearly than the lower angels. But it refers to inequality of proportion: because the angels, even the lowest, have every perfection of Happiness that they ever will have, whereas the separated souls of the saints have not.

SIXTH ARTICLE [I-II, Q. 4, Art. 6]

Whether Perfection of the Body Is Necessary for Happiness?

Objection 1: It would seem that perfection of the body is not necessary for man's perfect Happiness. For perfection of the body is a bodily good. But it has been shown above (Q. 2) that Happiness does not consist in bodily goods. Therefore no perfect disposition of the body is necessary for man's Happiness.

Obj. 2: Further, man's Happiness consists in the vision of the Divine Essence, as shown above (Q. 3, A. 8). But the body has no part in this operation, as shown above (A. 5). Therefore no disposition of the body is necessary for Happiness.

Obj. 3: Further, the more the intellect is abstracted from the body, the more perfectly it understands. But Happiness consists in the most perfect operation of the intellect. Therefore the soul should be abstracted from the body in every way. Therefore, in no way is a disposition of the body necessary for Happiness.

On the contrary, Happiness is the reward of virtue; wherefore it is written (John 13:17): "You shall be blessed, if you do them." But the reward promised to the saints is not only that they shall see and enjoy God, but also that their bodies shall be well-disposed; for it is written (Isa. 66:14): "You shall see and your heart shall rejoice, and your bones shall flourish like a herb." Therefore good disposition of the body is necessary for Happiness.

I answer that, If we speak of that happiness which man can acquire in this life, it is evident that a well-disposed body is of necessity required for it. For this happiness consists, according to the Philosopher (Ethic. i, 13) in "an operation according to perfect virtue"; and it is clear that man can be hindered, by indisposition of the body, from every operation of virtue.

But speaking of perfect Happiness, some have maintained that no disposition of body is necessary for Happiness; indeed, that it is necessary for the soul to be entirely separated from the body. Hence Augustine (De Civ. Dei xxii, 26) quotes the words of Porphyry who said that "for the soul to be happy, it must be severed from everything corporeal." But this is unreasonable. For since it is natural to the soul to be united to the body; it is not possible for the perfection of the soul to exclude its natural perfection.

Consequently, we must say that perfect disposition of the body is necessary, both antecedently and consequently, for that Happiness which is in all ways perfect. Antecedently, because, as Augustine says (Gen. ad lit. xii, 35), "if the body be such, that the governance thereof is difficult and burdensome, like unto flesh which is corruptible and weighs upon the soul, the mind is turned away from that vision of the highest heaven." Whence he concludes that, "when this body will no longer be 'natural,' but 'spiritual,' then will it be equalled to the angels, and that will be its glory, which erstwhile was its burden." Consequently, because from the Happiness of the soul there will be an overflow on to the body, so that this too will obtain its perfection. Hence Augustine says (Ep. ad Dioscor.) that "God gave the soul such a powerful nature that from its exceeding fulness of happiness the vigor of incorruption overflows into the lower nature."

Reply Obj. 1: Happiness does not consist in bodily good as its object: but bodily good can add a certain charm and perfection to Happiness.

Reply Obj. 2: Although the body has no part in that operation of the intellect whereby the Essence of God is seen, yet it might prove a hindrance thereto. Consequently, perfection of the body is necessary, lest it hinder the mind from being lifted up.

Reply Obj. 3: The perfect operation of the intellect requires indeed that the intellect be abstracted from this corruptible body which weighs upon the soul; but not from the spiritual body, which will be wholly subject to the spirit. On this point we shall treat in the Third Part of this work (Suppl., Q. 82, seqq.).

SEVENTH ARTICLE [I-II, Q. 4, Art. 7]

Whether Any External Goods Are Necessary for Happiness?

Objection 1: It would seem that external goods also are necessary for Happiness. For that which is promised the saints for reward, belongs to Happiness. But external goods are promised the saints; for instance, food and drink, wealth and a kingdom: for it is said (Luke 22:30): "That you may eat and drink at My table in My kingdom": and (Matt. 6:20): "Lay up to yourselves treasures in heaven": and (Matt. 25:34): "Come, ye blessed of My Father, possess you the kingdom." Therefore external goods are necessary for Happiness.

Obj. 2: Further, according to Boethius (De Consol. iii): happiness is "a state made perfect by the aggregate of all good things." But some of man's goods are external, although they be of least account, as Augustine says (De Lib. Arb. ii, 19). Therefore they too are necessary for Happiness.

Obj. 3: Further, Our Lord said (Matt. 5:12): "Your reward is very great in heaven." But to be in heaven implies being in a place. Therefore at least external place is necessary for Happiness.

On the contrary, It is written (Ps. 72:25): "For what have I in heaven? and besides Thee what do I desire upon earth?" As though to say: "I desire nothing but this, "—"It is good for me to adhere to my God." Therefore nothing further external is necessary for Happiness.

I answer that, For imperfect happiness, such as can be had in this life, external goods are necessary, not as belonging to the essence of happiness, but by serving as instruments to happiness, which consists in an operation of virtue, as stated in Ethic. i, 13. For man needs in this life, the necessaries of the body, both for the operation of contemplative virtue, and for the operation of active virtue, for which latter he needs also many other things by means of which to perform its operations.

On the other hand, such goods as these are nowise necessary for perfect Happiness, which consists in seeing God. The reason of this is that all suchlike external goods are requisite either for the support of the animal body; or for certain operations which belong to human life, which we perform by means of the animal body: whereas that perfect Happiness which consists in seeing God, will be either in the soul separated from the body, or in the soul united to the body then no longer animal but spiritual. Consequently these external goods are nowise necessary for that Happiness, since they are ordained to the animal life. And since, in this life, the felicity of contemplation, as being more Godlike, approaches nearer than that of action to the likeness of that perfect Happiness, therefore it stands in less need of these goods of the body as stated in Ethic. x, 8.

Reply Obj. 1: All those material promises contained in Holy Scripture, are to be understood metaphorically, inasmuch as Scripture is wont to express spiritual things under the form of things corporeal, in order "that from things we know, we may rise to the desire of things unknown," as Gregory says (Hom. xi in Evang.). Thus food and drink signify the delight of Happiness; wealth, the sufficiency of God for man; the kingdom, the lifting up of man to union of God.

Reply Obj. 2: These goods that serve for the animal life, are incompatible with that spiritual life wherein perfect Happiness consists. Nevertheless in that Happiness there will be the aggregate of all good things, because whatever good there be in these things, we shall possess it all in the Supreme Fount of goodness.

Reply Obj. 3: According to Augustine (De Serm. Dom. in Monte i, 5), it is not material heaven that is described as the reward of the saints, but a heaven raised on the height of spiritual goods. Nevertheless a bodily place, viz. the empyrean heaven, will be appointed to the Blessed, not as a need of Happiness, but by reason of a certain fitness and adornment.

EIGHTH ARTICLE [I-II, Q. 4, Art. 8]

Whether the Fellowship of Friends Is Necessary for Happiness?

Objection 1: It would seem that friends are necessary for Happiness. For future Happiness is frequently designated by Scripture under the name of "glory." But glory consists in man's good being brought to the notice of many. Therefore the fellowship of friends is necessary for Happiness.

Obj. 2: Further, Boethius [*Seneca, Ep. 6] says that "there is no delight in possessing any good whatever, without someone to share it with us." But delight is necessary for Happiness. Therefore fellowship of friends is also necessary.

Obj. 3: Further, charity is perfected in Happiness. But charity includes the love of God and of our neighbor. Therefore it seems that fellowship of friends is necessary for Happiness.

On the contrary, It is written (Wis. 7:11): "All good things came to me together with her," i.e. with divine wisdom, which consists in contemplating God. Consequently nothing else is necessary for Happiness.

I answer that, If we speak of the happiness of this life, the happy man needs friends, as the Philosopher says (Ethic. ix, 9), not, indeed, to make use of them, since he suffices himself; nor to delight in them, since he possesses perfect delight in the operation of virtue; but for the purpose of a good operation, viz. that he may do good to them; that he may delight in seeing them do good; and again that he may be helped by them in his good work. For in order that man may do well, whether in the works of the active life, or in those of the contemplative life, he needs the fellowship of friends.

But if we speak of perfect Happiness which will be in our heavenly Fatherland, the fellowship of friends is not essential to Happiness; since man has the entire fulness of his perfection in God. But the fellowship of friends conduces to the well-being of Happiness. Hence Augustine says (Gen. ad lit. viii, 25) that "the spiritual creatures receive no other interior aid to happiness than the eternity, truth, and charity of the Creator. But if they can be said to be helped from without, perhaps it is only by this that they see one another and rejoice in God, at their fellowship."

Reply Obj. 1: That glory which is essential to Happiness, is that which man has, not with man but with God.

Reply Obj. 2: This saying is to be understood of the possession of good that does not fully satisfy. This does not apply to the question under consideration; because man possesses in God a sufficiency of every good.

Reply Obj. 3: Perfection of charity is essential to Happiness, as to the love of God, but not as to the love of our neighbor. Wherefore if there were but one soul enjoying God, it would be happy, though having no neighbor to love. But supposing one neighbor to be there, love of him results from perfect love of God. Consequently, friendship is, as it were, concomitant with perfect Happiness.

QUESTION 5

OF THE ATTAINMENT OF HAPPINESS (In Eight Articles)

We must now consider the attainment of Happiness. Under this heading there are eight points of inquiry:

(1) Whether man can attain Happiness?

(2) Whether one man can be happier than another?

(3) Whether any man can be happy in this life?

(4) Whether Happiness once had can be lost?

(5) Whether man can attain Happiness by means of his natural powers?

(6) Whether man attains Happiness through the action of some higher creature?

(7) Whether any actions of man are necessary in order that man may obtain Happiness of God?

(8) Whether every man desires Happiness?

FIRST ARTICLE [I-II, Q. 5, Art. 1]

Whether Man Can Attain Happiness?

Objection 1: It would seem that man cannot attain happiness. For just as the rational is above the sensible nature, so the intellectual is above the rational, as Dionysius declares (Div. Nom. iv, vi, vii) in several passages. But irrational animals that have the sensitive nature only, cannot attain the end of the rational nature. Therefore neither can man, who is of rational nature, attain the end of the intellectual nature, which is Happiness.

Obj. 2: Further, True Happiness consists in seeing God, Who is pure Truth. But from his very nature, man considers truth in material things: wherefore "he understands the intelligible species in the phantasm" (De Anima iii, 7). Therefore he cannot attain Happiness.

Obj. 3: Further, Happiness consists in attaining the Sovereign Good. But we cannot arrive at the top without surmounting the middle. Since, therefore, the angelic nature through which man cannot mount is midway between God and human nature; it seems that he cannot attain Happiness.

On the contrary, It is written (Ps. 93:12): "Blessed is the man whom Thou shalt instruct, O Lord."

I answer that, Happiness is the attainment of the Perfect Good. Whoever, therefore, is capable of the Perfect Good can attain Happiness. Now, that man is capable of the Perfect Good, is proved both because his intellect can apprehend the universal and perfect good, and because his will can desire it. And therefore man can attain Happiness. This can be proved again from the fact that man is capable of seeing God, as stated in the First Part (Q. 12, A. 1): in which vision, as we stated above (Q. 3, A. 8) man's perfect Happiness consists.

Reply Obj. 1: The rational exceeds the sensitive nature, otherwise than the intellectual surpasses the rational. For the rational exceeds the sensitive nature in respect of the object of its knowledge: since the senses have no knowledge whatever of the universal, whereas the reason has knowledge thereof. But the intellectual surpasses the rational nature, as to the mode of knowing the same intelligible truth: for the intellectual nature grasps forthwith the truth which the rational nature reaches by the inquiry of reason, as was made clear in the First Part (Q. 58, A. 3; Q. 79, A. 8). Therefore reason arrives by a kind of movement at that which the intellect grasps. Consequently the rational nature can attain Happiness, which is the perfection of the intellectual nature: but otherwise than the angels. Because the angels attained it forthwith after the beginning of their creation: whereas man attains if after a time. But the sensitive nature can nowise attain this end.

Reply Obj. 2: To man in the present state of life the natural way of knowing intelligible truth is by means of phantasms. But after this state of life, he has another natural way, as was stated in the First Part (Q. 84, A. 7; Q. 89, A. 1).

Reply Obj. 3: Man cannot surmount the angels in the degree of nature so as to be above them naturally. But he can surmount them by an operation of the intellect, by understanding that there is above the angels something that makes men happy; and when he has attained it, he will be perfectly happy.

SECOND ARTICLE [I-II, Q. 5, Art. 2]

Whether One Man Can Be Happier Than Another?

Objection 1: It would seem that one man cannot be happier than another. For Happiness is "the reward of virtue," as the Philosopher says (Ethic. i, 9). But equal reward is given for all the works of virtue; because it is written (Matt. 20:10) that all who labor in the vineyard "received every man a penny"; for, as Gregory says (Hom. xix in Evang.), "each was equally rewarded with eternal life." Therefore one man cannot be happier than another.

Obj. 2: Further, Happiness is the supreme good. But nothing can surpass the supreme. Therefore one man's Happiness cannot be surpassed by another's.

Obj. 3: Further, since Happiness is "the perfect and sufficient good" (Ethic. i, 7) it brings rest to man's desire. But his desire is not at rest, if he yet lacks some good that can be got. And if he lack nothing that he can get, there can be no still greater good. Therefore either man is not happy; or, if he be happy, no other Happiness can be greater.

On the contrary, It is written (John 14:2): "In My Father's house there are many mansions"; which, according to Augustine (Tract. lxvii in Joan.) signify "the diverse dignities of merits in the one eternal life." But the dignity of eternal life which is given according to merit, is Happiness itself. Therefore there are diverse degrees of Happiness, and Happiness is not equally in all.

I answer that, As stated above (Q. 1, A. 8; Q. 2, A. 7), Happiness implies two things, to wit, the last end itself, i.e. the Sovereign Good; and the attainment or enjoyment of that same Good. As to that Good itself, Which is the object and cause of Happiness, one Happiness cannot be greater than another, since there is but one Sovereign Good, namely, God, by enjoying Whom, men are made happy. But as to the attainment or enjoyment of this Good, one man can be happier than another; because the more a man enjoys this Good the happier he is. Now, that one man enjoys God more than another, happens through his being better disposed or ordered to the enjoyment of Him. And in this sense one man can be happier than another.

Reply Obj. 1: The one penny signifies that Happiness is one in its object. But the many mansions signify the manifold Happiness in the divers degrees of enjoyment.

Reply Obj. 2: Happiness is said to be the supreme good, inasmuch as it is the perfect possession or enjoyment of the Supreme Good.

Reply Obj. 3: None of the Blessed lacks any desirable good; since they have the Infinite Good Itself, Which is "the good of all good," as Augustine says (Enarr. in Ps. 134). But one is said to be happier than another, by reason of diverse participation of the same good. And the addition of other goods does not increase Happiness, since Augustine says (Confess. v, 4): "He who knows Thee, and others besides, is not the happier for knowing them, but is happy for knowing Thee alone."

THIRD ARTICLE [I-II, Q. 5, Art. 3]

Whether One Can Be Happy in This Life?

Objection 1: It would seem that Happiness can be had in this life. For it is written (Ps. 118:1): "Blessed are the undefiled in the way, who walk in the law of the Lord." But this happens in this life. Therefore one can be happy in this life.

Obj. 2: Further, imperfect participation in the Sovereign Good does not destroy the nature of Happiness, otherwise one would not be happier than another. But men can participate in the Sovereign Good in this life, by knowing and loving God, albeit imperfectly. Therefore man can be happy in this life.

Obj. 3: Further, what is said by many cannot be altogether false: since what is in many, comes, apparently, from nature; and nature does not fail altogether. Now many say that Happiness can be had in this life, as appears from Ps. 143:15: "They have called the people happy that hath these things," to wit, the good things in this life. Therefore one can be happy in this life.

On the contrary, It is written (Job 14:1): "Man born of a woman, living for a short time, is filled with many miseries." But Happiness excludes misery. Therefore man cannot be happy in this life.

I answer that, A certain participation of Happiness can be had in this life: but perfect and true Happiness cannot be had in this life. This may be seen from a twofold consideration.

First, from the general notion of happiness. For since happiness is a "perfect and sufficient good," it excludes every evil, and fulfils every desire. But in this life every evil cannot be excluded. For this present life is subject to many unavoidable evils; to ignorance on the part of the intellect; to inordinate affection on the part of the appetite, and to many penalties on the part of the body; as Augustine sets forth in De Civ. Dei xix, 4. Likewise neither can the desire for good be satiated in this life. For man naturally desires the good, which he has, to be abiding. Now the goods of the present life pass away; since life itself passes away, which we naturally desire to have, and would wish to hold abidingly, for man naturally shrinks from death. Wherefore it is impossible to have true Happiness in this life.

Secondly, from a consideration of the specific nature of Happiness, viz. the vision of the Divine Essence, which man cannot obtain in this life, as was shown in the First Part (Q. 12, A. 11). Hence it is evident that none can attain true and perfect Happiness in this life.

Reply Obj. 1: Some are said to be happy in this life, either on account of the hope of obtaining Happiness in the life to come, according to Rom. 8:24: "We are saved by hope"; or on account of a certain participation of Happiness, by reason of a kind of enjoyment of the Sovereign Good.

Reply Obj. 2: The imperfection of participated Happiness is due to one of two causes. First, on the part of the object of Happiness, which is not seen in Its Essence: and this imperfection destroys the nature of true Happiness. Secondly, the imperfection may be on the part of the participator, who indeed attains the object of Happiness, in itself, namely, God: imperfectly, however, in comparison with the way in which God enjoys Himself. This imperfection does not destroy the true nature of Happiness; because, since Happiness is an operation, as stated above (Q. 3, A. 2), the true nature of Happiness is taken from the object, which specifies the act, and not from the subject.

Reply Obj. 3: Men esteem that there is some kind of happiness to be had in this life, on account of a certain likeness to true Happiness. And thus they do not fail altogether in their estimate.

FOURTH ARTICLE [I-II, Q. 5, Art. 4]

Whether Happiness Once Had Can Be Lost?

Objection 1: It would seem that Happiness can be lost. For Happiness is a perfection. But every perfection is in the thing perfected according to the mode of the latter. Since then man is, by his nature, changeable, it seems that Happiness is participated by man in a changeable manner. And consequently it seems that man can lose Happiness.

Obj. 2: Further, Happiness consists in an act of the intellect; and the intellect is subject to the will. But the will can be directed to opposites. Therefore it seems that it can desist from the operation whereby man is made happy: and thus man will cease to be happy.

Obj. 3: Further, the end corresponds to the beginning. But man's Happiness has a beginning, since man was not always happy. Therefore it seems that it has an end.

On the contrary, It is written (Matt. 25:46) of the righteous that "they shall go . . . into life everlasting," which, as above stated (A. 2), is the Happiness of the saints. Now what is eternal ceases not. Therefore Happiness cannot be lost.

I answer that, If we speak of imperfect happiness, such as can be had in this life, in this sense it can be lost. This is clear of contemplative happiness, which is lost either by forgetfulness, for instance, when knowledge is lost through sickness; or again by certain occupations, whereby a man is altogether withdrawn from contemplation.

This is also clear of active happiness: since man's will can be changed so as to fall to vice from the virtue, in whose act that happiness principally consists. If, however, the virtue remain unimpaired, outward changes can indeed disturb such like happiness, in so far as they hinder many acts of virtue; but they cannot take it away altogether because there still remains an act of virtue, whereby man bears these trials in a praiseworthy manner. And since the happiness of this life can be lost, a circumstance that appears to be contrary to the nature of happiness, therefore did the Philosopher state (Ethic. i, 10) that some are happy in this life, not simply, but "as men," whose nature is subject to change.

But if we speak of that perfect Happiness which we await after this life, it must be observed that Origen (Peri Archon. ii, 3), following the error of certain Platonists, held that man can become unhappy after the final Happiness.

This, however, is evidently false, for two reasons. First, from the general notion of happiness. For since happiness is the "perfect and sufficient good," it must needs set man's desire at rest and exclude every evil. Now man naturally desires to hold to the good that he has, and to have the surety of his holding: else he must of necessity be troubled with the fear of losing it, or with the sorrow of knowing that he will lose it. Therefore it is necessary for true Happiness that man have the assured opinion of never losing the good that he possesses. If this opinion be true, it follows that he never will lose happiness: but if it be false, it is in itself an evil that he should have a false opinion: because the false is the evil of the intellect, just as the true is its good, as stated in Ethic. vi, 2. Consequently he will no longer be truly happy, if evil be in him.

Secondly, it is again evident if we consider the specific nature of Happiness. For it has been shown above (Q. 3, A. 8) that man's perfect Happiness consists in the vision of the Divine Essence. Now it is impossible for anyone seeing the Divine Essence, to wish not to see It. Because every good that one possesses and yet wishes to be without, is either insufficient, something more sufficing being desired in its stead; or else has some inconvenience attached to it, by reason of which it becomes wearisome. But the vision of the Divine Essence fills the soul with all good things, since it unites it to the source of all goodness; hence it is written (Ps. 16:15): "I shall be satisfied when Thy glory shall appear"; and (Wis. 7:11): "All good things came to me together with her," i.e. with the contemplation of wisdom. In like manner neither has it any inconvenience attached to it; because it is written of the contemplation of wisdom (Wis. 8:16): "Her conversation hath no bitterness, nor her company any tediousness." It is thus evident that the happy man cannot forsake Happiness of his own accord. Moreover, neither can he lose Happiness, through God taking it away from him. Because, since the withdrawal of Happiness is a punishment, it cannot be enforced by God, the just Judge, except for some fault; and he that sees God cannot fall into a fault, since rectitude of the will, of necessity, results from that vision as was shown above (Q. 4, A. 4). Nor again can it be withdrawn by any other agent. Because the mind that is united to God is raised above all other things: and consequently no other agent can sever the mind from that union. Therefore it seems unreasonable that as time goes on, man should pass from happiness to misery, and vice versa; because such like vicissitudes of time can only be for such things as are subject to time and movement.

Reply Obj. 1: Happiness is consummate perfection, which excludes every defect from the happy. And therefore whoever has happiness has it altogether unchangeably: this is done by the Divine power, which raises man to the participation of eternity which transcends all change.

Reply Obj. 2: The will can be directed to opposites, in things which are ordained to the end; but it is ordained, of natural necessity, to the last end. This is evident from the fact that man is unable not to wish to be happy.

Reply Obj. 3: Happiness has a beginning owing to the condition of the participator: but it has no end by reason of the condition of the good, the participation of which makes man happy. Hence the beginning of happiness is from one cause, its endlessness is from another.

FIFTH ARTICLE [I-II, Q. 5, Art. 5]

Whether Man Can Attain Happiness by His Natural Powers?

Objection 1: It would seem that man can attain Happiness by his natural powers. For nature does not fail in necessary things. But nothing is so necessary to man as that by which he attains the last end. Therefore this is not lacking to human nature. Therefore man can attain Happiness by his natural powers.

Obj. 2: Further, since man is more noble than irrational creatures, it seems that he must be better equipped than they. But irrational creatures can attain their end by their natural powers. Much more therefore can man attain Happiness by his natural powers.

Obj. 3: Further, Happiness is a "perfect operation," according to the Philosopher (Ethic. vii, 13). Now the beginning of a thing belongs to the same principle as the perfecting thereof. Since, therefore, the imperfect operation, which is as the beginning in human operations, is subject to man's natural power, whereby he is master of his own actions; it seems that he can attain to perfect operation, i.e. Happiness, by his natural powers.

On the contrary, Man is naturally the principle of his action, by his intellect and will. But final Happiness prepared for the saints, surpasses the intellect and will of man; for the Apostle says (1 Cor. 2:9) "Eye hath not seen, nor ear heard, neither hath it entered into the heart of man, what things God hath prepared for them that love Him." Therefore man cannot attain Happiness by his natural powers.

I answer that, Imperfect happiness that can be had in this life, can be acquired by man by his natural powers, in the same way as virtue, in whose operation it consists: on this point we shall speak further on (Q. 63). But man's perfect Happiness, as stated above (Q. 3, A. 8), consists in the vision of the Divine Essence. Now the vision of God's Essence surpasses the nature not only of man, but also of every creature, as was shown in the First Part (Q. 12, A. 4). For the natural knowledge of every creature is in keeping with the mode of his substance: thus it is said of the intelligence (De Causis; Prop. viii) that "it knows things that are above it, and things that are below it, according to the mode of its substance." But every knowledge that is according to the mode of created substance, falls short of the vision of the Divine Essence, which infinitely surpasses all created substance. Consequently neither man, nor any creature, can attain final Happiness by his natural powers.

Reply Obj. 1: Just as nature does not fail man in necessaries, although it has not provided him with weapons and clothing, as it provided other animals, because it gave him reason and hands, with which he is able to get these things for himself; so neither did it fail man in things necessary, although it gave him not the wherewithal to attain Happiness: since this it could not do. But it did give him free-will, with which he can turn to God, that He may make him happy. "For what we do by means of our friends, is done, in a sense, by ourselves" (Ethic. iii, 3).

Reply Obj. 2: The nature that can attain perfect good, although it needs help from without in order to attain it, is of more noble condition than a nature which cannot attain perfect good, but attains some imperfect good, although it need no help from without in order to attain it, as the Philosopher says (De Coel. ii, 12). Thus he is better disposed to health who can attain perfect health, albeit by means of medicine, than he who can attain but imperfect health, without the help of medicine. And therefore the rational creature, which can attain the perfect good of happiness, but needs the Divine assistance for the purpose, is more perfect than the irrational creature, which is not capable of attaining this good, but attains some imperfect good by its natural powers.

Reply Obj. 3: When imperfect and perfect are of the same species, they can be caused by the same power. But this does not follow of necessity, if they be of different species: for not everything, that can cause the disposition of matter, can produce the final perfection. Now the imperfect operation, which is subject to man's natural power, is not of the same species as that perfect operation which is man's happiness: since operation takes its species from its object. Consequently the argument does not prove.

SIXTH ARTICLE [I-II, Q. 5, Art. 6]

Whether Man Attains Happiness Through the Action of Some Higher Creature?

Objection 1: It would seem that man can be made happy through the action of some higher creature, viz. an angel. For since we observe a twofold order in things—one, of the parts of the universe to one another, the other, of the whole universe to a good which is outside the universe; the former order is ordained to the second as to its end (Metaph. xii, 10). Thus the mutual order of the parts of an army is dependent on the order of the parts of an army is dependent on the order of the whole army to the general. But the mutual order of the parts of the universe consists in the higher creatures acting on the lower, as stated in the First Part (Q. 109, A. 2): while happiness consists in the order of man to a good which is outside the universe, i.e. God. Therefore man is made happy, through a higher creature, viz. an angel, acting on him.

Obj. 2: Further, that which is such in potentiality, can be reduced to act, by that which is such actually: thus what is potentially hot, is made actually hot, by something that is actually hot. But man is potentially happy. Therefore he can be made actually happy by an angel who is actually happy.

Obj. 3: Further, Happiness consists in an operation of the intellect as stated above (Q. 3, A. 4). But an angel can enlighten man's intellect as shown in the First Part (Q. 111, A. 1). Therefore an angel can make a man happy.

On the contrary, It is written (Ps. 83:12): "The Lord will give grace and glory."

I answer that, Since every creature is subject to the laws of nature, from the very fact that its power and action are limited: that which surpasses created nature, cannot be done by the power of any creature. Consequently if anything need to be done that is above nature, it is done by God immediately; such as raising the dead to life, restoring sight to the blind, and such like. Now it has been shown above (A. 5) that Happiness is a good surpassing created nature. Therefore it is impossible that it be bestowed through the action of any creature: but by God alone is man made happy, if we speak of perfect Happiness. If, however, we speak of imperfect happiness, the same is to be said of it as of the virtue, in whose act it consists.

Reply Obj. 1: It often happens in the case of active powers ordained to one another, that it belongs to the highest power to reach the last end, while the lower powers contribute to the attainment of that last end, by causing a disposition thereto: thus to the art of sailing, which commands the art of shipbuilding, it belongs to use a ship for the end for which it was made. Thus, too, in the order of the universe, man is indeed helped by the angels in the attainment of his last end, in respect of certain preliminary dispositions thereto: whereas he attains the last end itself through the First Agent, which is God.

Reply Obj. 2: When a form exists perfectly and naturally in something, it can be the principle of action on something else: for instance a hot thing heats through heat. But if a form exist in something imperfectly, and not naturally, it cannot be the principle whereby it is communicated to something else: thus the intention of color which is in the pupil, cannot make a thing white; nor indeed can everything enlightened or heated give heat or light to something else; for if they could, enlightening and heating would go on to infinity. But the light of glory, whereby God is seen, is in God perfectly and naturally; whereas in any creature, it is imperfectly and by likeness or participation. Consequently no creature can communicate its Happiness to another.

Reply Obj. 3: A happy angel enlightens the intellect of a man or of a lower angel, as to certain notions of the Divine works: but not as to the vision of the Divine Essence, as was stated in the First Part (Q. 106, A. 1): since in order to see this, all are immediately enlightened by God.

SEVENTH ARTICLE [I-II, Q. 5, Art. 7]

Whether Any Good Works Are Necessary That Man May Receive Happiness from God?

Objection 1: It would seem that no works of man are necessary that he may obtain Happiness from God. For since God is an agent of infinite power, He requires before acting, neither matter, nor disposition of matter, but can forthwith produce the whole effect. But man's works, since they are not required for Happiness, as the efficient cause thereof, as stated above (A. 6), can be required only as dispositions thereto. Therefore God who does not require dispositions before acting, bestows Happiness without any previous works.

Obj. 2: Further, just as God is the immediate cause of Happiness, so is He the immediate cause of nature. But when God first established nature, He produced creatures without any previous disposition or action on the part of the creature, but made each one perfect forthwith in its species. Therefore it seems that He bestows Happiness on man without any previous works.

Obj. 3: Further, the Apostle says (Rom. 4:6) that Happiness is of the man "to whom God reputeth justice without works." Therefore no works of man are necessary for attaining Happiness.

On the contrary, It is written (John 13:17): "If you know these things, you shall be blessed if you do them." Therefore Happiness is obtained through works.

I answer that, Rectitude of the will, as stated above (Q. 4, A. 4), is necessary for Happiness; since it is nothing else than the right order of the will to the last end; and it is therefore necessary for obtaining the end, just as the right disposition of matter, in order to receive the form. But this does not prove that any work of man need precede his Happiness: for God could make a will having a right tendency to the end, and at the same time attaining the end; just as sometimes He disposes matter and at the same time introduces the form. But the order of Divine wisdom demands that it should not be thus; for as is stated in De Coelo ii, 12, "of those things that have a natural capacity for the perfect good, one has it without movement, some by one movement, some by several." Now to possess the perfect good without movement, belongs to that which has it naturally: and to have Happiness naturally belongs to God alone. Therefore it belongs to God alone not to be moved towards Happiness by any previous operation. Now since Happiness surpasses every created nature, no pure creature can becomingly gain Happiness, without the movement of operation, whereby it tends thereto. But the angel, who is above man in the natural order, obtained it, according to the order of Divine wisdom, by one movement of a meritorious work, as was explained in the First Part (Q. 62, A. 5); whereas man obtains it by many movements of works which are called merits. Wherefore also according to the Philosopher (Ethic. i, 9), happiness is the reward of works of virtue.

Reply Obj. 1: Works are necessary to man in order to gain Happiness; not on account of the insufficiency of the Divine power which bestows Happiness, but that the order in things be observed.

Reply Obj. 2: God produced the first creatures so that they are perfect forthwith, without any previous disposition or operation of the creature; because He instituted the first individuals of the various species, that through them nature might be propagated to their progeny. In like manner, because Happiness was to be bestowed on others through Christ, who is God and Man, "Who," according to Heb. 2:10, "had brought many children into glory"; therefore, from the very beginning of His conception, His soul was happy, without any previous meritorious operation. But this is peculiar to Him: for Christ's merit avails baptized children for the gaining of Happiness, though they have no merits of their own; because by Baptism they are made members of Christ.

Reply Obj. 3: The Apostle is speaking of the Happiness of Hope, which is bestowed on us by sanctifying grace, which is not given on account of previous works. For grace is not a term of movement, as Happiness is; rather is it the principle of the movement that tends towards Happiness.

EIGHTH ARTICLE [I-II, Q. 5, Art. 8]

Whether Every Man Desires Happiness?

Objection 1: It would seem that not all desire Happiness. For no man can desire what he knows not; since the apprehended good is the object of the appetite (De Anima iii, 10). But many know not what Happiness is. This is evident from the fact that, as Augustine says (De Trin. xiii, 4), "some thought that Happiness consists in pleasures of the body; some, in a virtue of the soul; some in other things." Therefore not all desire Happiness.

Obj. 2: Further, the essence of Happiness is the vision of the Divine Essence, as stated above (Q. 3, A. 8). But some consider it impossible for man to see the Divine Essence; wherefore they desire it not. Therefore all men do not desire Happiness.

Obj. 3: Further, Augustine says (De Trin. xiii, 5) that "happy is he who has all he desires, and desires nothing amiss." But all do not desire this; for some desire certain things amiss, and yet they wish to desire such things. Therefore all do not desire Happiness.

On the contrary, Augustine says (De Trin. xiii, 3): "If that actor had said: 'You all wish to be happy; you do not wish to be unhappy,' he would have said that which none would have failed to acknowledge in his will." Therefore everyone desires to be happy.

I answer that, Happiness can be considered in two ways. First according to the general notion of happiness: and thus, of necessity, every man desires happiness. For the general notion of happiness consists in the perfect good, as stated above (AA. 3, 4). But since good is the object of the will, the perfect good of a man is that which entirely satisfies his will. Consequently to desire happiness is nothing else than to desire that one's will be satisfied. And this everyone desires. Secondly we may speak of Happiness according to its specific notion, as to that in which it consists. And thus all do not know Happiness; because they know not in what thing the general notion of happiness is found. And consequently, in this respect, not all desire it. Wherefore the reply to the first Objection is clear.

Reply Obj. 2: Since the will follows the apprehension of the intellect or reason; just as it happens that where there is no real distinction, there may be a distinction according to the consideration of reason; so does it happen that one and the same thing is desired in one way, and not desired in another. So that happiness may be considered as the final and perfect good, which is the general notion of happiness: and thus the will naturally and of necessity tends thereto, as stated above. Again it can be considered under other special aspects, either on the part of the operation itself, or on the part of the operating power, or on the part of the object; and thus the will does not tend thereto of necessity.

Reply Obj. 3: This definition of Happiness given by some—"Happy is the man that has all he desires," or, "whose every wish is fulfilled," is a good and adequate definition, if it be understood in a certain way; but an inadequate definition if understood in another. For if we understand it simply of all that man desires by his natural appetite, thus it is true that he who has all that he desires, is happy: since nothing satisfies man's natural desire, except the perfect good which is Happiness. But if we understand it of those things that man desires according to the apprehension of the reason, thus it does not belong to Happiness, to have certain things that man desires; rather does it belong to unhappiness, in so far as the possession of such things hinders man from having all that he desires naturally; thus it is that reason sometimes accepts as true things that are a hindrance to the knowledge of truth. And it was through taking this into consideration that Augustine added so as to include perfect Happiness—that he "desires nothing amiss": although the first part suffices if rightly understood, to wit, that "happy is he who has all he desires."

TREATISE ON HUMAN ACTS: ACTS PECULIAR TO MAN (QQ. 6-21)

QUESTION 6

OF THE VOLUNTARY AND THE INVOLUNTARY (In Eight Articles)

Since therefore Happiness is to be gained by means of certain acts, we must in due sequence consider human acts, in order to know by what acts we may obtain Happiness, and by what acts we are prevented from obtaining it. But because operations and acts are concerned with things singular, consequently all practical knowledge is incomplete unless it take account of things in detail. The study of Morals, therefore, since it treats of human acts, should consider first the general principles; and secondly matters of detail.

In treating of the general principles, the points that offer themselves for our consideration are (1) human acts themselves; (2) their principles. Now of human acts some are proper to man; others are common to man and animals. And since Happiness is man's proper good, those acts which are proper to man have a closer connection with Happiness than have those which are common to man and the other animals. First, then, we must consider those acts which are proper to man; secondly, those acts which are common to man and the other animals, and are called Passions. The first of these points offers a twofold consideration: (1) What makes a human act? (2) What distinguishes human acts?

And since those acts are properly called human which are voluntary, because the will is the rational appetite, which is proper to man; we must consider acts in so far as they are voluntary.

First, then, we must consider the voluntary and involuntary in general; secondly, those acts which are voluntary, as being elicited by the will, and as issuing from the will immediately; thirdly, those acts which are voluntary, as being commanded by the will, which issue from the will through the medium of the other powers.

And because voluntary acts have certain circumstances, according to which we form our judgment concerning them, we must first consider the voluntary and the involuntary, and afterwards, the circumstances of those acts which are found to be voluntary or involuntary. Under the first head there are eight points of inquiry:

(1) Whether there is anything voluntary in human acts?

(2) Whether in irrational animals?

(3) Whether there can be voluntariness without any action?

(4) Whether violence can be done to the will?

(5) Whether violence causes involuntariness?

(6) Whether fear causes involuntariness?

(7) Whether concupiscence causes involuntariness?

(8) Whether ignorance causes involuntariness?

FIRST ARTICLE [I-II, Q. 6, Art. 1]

Whether There Is Anything Voluntary in Human Acts?

Objection 1: It would seem that there is nothing voluntary in human acts. For that is voluntary "which has its principle within itself." as Gregory of Nyssa [*Nemesius, De Natura Hom. xxxii.], Damascene (De Fide Orth. ii, 24), and Aristotle (Ethic. iii, 1) declare. But the principle of human acts is not in man himself, but outside him: since man's appetite is moved to act, by the appetible object which is outside him, and is as a "mover unmoved" (De Anima iii, 10). Therefore there is nothing voluntary in human acts.

Obj. 2: Further, the Philosopher (Phys. viii, 2) proves that in animals no new movement arises that is not preceded by a motion from without. But all human acts are new, since none is eternal. Consequently, the principle of all human acts is from without: and therefore there is nothing voluntary in them.

Obj. 3: Further, he that acts voluntarily, can act of himself. But this is not true of man; for it is written (John 15:5): "Without Me you can do nothing." Therefore there is nothing voluntary in human acts.

On the contrary, Damascene says (De Fide Orth. ii) that "the voluntary is an act consisting in a rational operation." Now such are human acts. Therefore there is something voluntary in human acts.

I answer that, There must needs be something voluntary in human acts. In order to make this clear, we must take note that the principle of some acts or movements is within the agent, or that which is moved; whereas the principle of some movements or acts is outside. For when a stone is moved upwards, the principle of this movement is outside the stone: whereas when it is moved downwards, the principle of this movement is in the stone. Now of those things that are moved by an intrinsic principle, some move themselves, some not. For since every agent or thing moved, acts or is moved for an end, as stated above (Q. 1, A. 2); those are perfectly moved by an intrinsic principle, whose intrinsic principle is one not only of movement but of movement for an end. Now in order for a thing to be done for an end, some knowledge of the end is necessary. Therefore, whatever so acts or is moved by an intrinsic principle, that it has some knowledge of the end, has within itself the principle of its act, so that it not only acts, but acts for an end. On the other hand, if a thing has no knowledge of the end, even though it have an intrinsic principle of action or movement, nevertheless the principle of acting or being moved for an end is not in that thing, but in something else, by which the principle of its action towards an end is not in that thing, but in something else, by which the principle of its action towards an end is imprinted on it. Wherefore such like things are not said to move themselves, but to be moved by others. But those things which have a knowledge of the end are said to move themselves because there is in them a principle by which they not only act but also act for an end. And consequently, since both are from an intrinsic principle, to wit, that they act and that they act for an end, the movements of such things are said to be voluntary: for the word "voluntary" implies that their movements and acts are from their own inclination. Hence it is that, according to the definitions of Aristotle, Gregory of Nyssa, and Damascene [*See Objection 1], the voluntary is defined not only as having "a principle within" the agent, but also as implying "knowledge." Therefore, since man especially knows the end of his work, and moves himself, in his acts especially is the voluntary to be found.

Reply Obj. 1: Not every principle is a first principle. Therefore, although it is essential to the voluntary act that its principle be within the agent, nevertheless it is not contrary to the nature of the voluntary act that this intrinsic principle be caused or moved by an extrinsic principle: because it is not essential to the voluntary act that its intrinsic principle be a first principle. Yet again it must be observed that a principle of movement may happen to be first in a genus, but not first simply: thus in the genus of things subject to alteration, the first principle of alteration is a heavenly body, which nevertheless is not the first mover simply, but is moved locally by a higher mover. And so the intrinsic principle of the voluntary act, i.e. the cognitive and appetitive power, is the first principle in the genus of appetitive movement, although it is moved by an extrinsic principle according to other species of movement.

Reply Obj. 2: New movements in animals are indeed preceded by a motion from without; and this in two respects. First, in so far as by means of an extrinsic motion an animal's senses are confronted with something sensible, which, on being apprehended, moves the appetite. Thus a lion, on seeing a stag in movement and coming towards him, begins to be moved towards the stag. Secondly, in so far as some extrinsic motion produces a physical change in an animal's body, as in the case of cold or heat; and through the body being affected by the motion of an outward body, the sensitive appetite which is the power of a bodily organ, is also moved indirectly; thus it happens that through some alteration in the body the appetite is roused to the desire of something. But this is not contrary to the nature of voluntariness, as stated above (ad 1), for such movements caused by an extrinsic principle are of another genus of movement.