Reply Obj. 3: To be despised by one's friends seems also a greater indignity. Consequently if they despise us by hurting or by failing to help, we are angry with them for the same reason for which we are angry with those who are beneath us.

QUESTION 48

OF THE EFFECTS OF ANGER (In Four Articles)

We must now consider the effects of anger: under which head there are four points of inquiry:

(1) Whether anger causes pleasure?

(2) Whether above all it causes heat in the heart?

(3) Whether above all it hinders the use of reason?

(4) Whether it causes taciturnity?

FIRST ARTICLE [I-II, Q. 48, Art. 1]

Whether Anger Causes Pleasure?

Objection 1: It would seem that anger does not cause pleasure. Because sorrow excludes pleasure. But anger is never without sorrow, since, as stated in Ethic. vii, 6, "everyone that acts from anger, acts with pain." Therefore anger does not cause pleasure.

Obj. 2: Further, the Philosopher says (Ethic. iv, 5) that "vengeance makes anger to cease, because it substitutes pleasure for pain": whence we may gather that the angry man derives pleasure from vengeance, and that vengeance quells his anger. Therefore on the advent of pleasure, anger departs: and consequently anger is not an effect united with pleasure.

Obj. 3: Further, no effect hinders its cause, since it is conformed to its cause. But pleasure hinders anger as stated in Rhet. ii, 3. Therefore pleasure is not an effect of anger.

On the contrary, The Philosopher (Ethic. iv, 5) quotes the saying that anger is "Sweet to the soul as honey to the taste" (Iliad, xviii, 109, trl. Pope).

I answer that, As the Philosopher says (Ethic. vii, 14), pleasures, chiefly sensible and bodily pleasures, are remedies against sorrow: and therefore the greater the sorrow or anxiety, the more sensible are we to the pleasure which heals it, as is evident in the case of thirst which increases the pleasure of drink. Now it is clear from what has been said (Q. 47, AA. 1, 3), that the movement of anger arises from a wrong done that causes sorrow, for which sorrow vengeance is sought as a remedy. Consequently as soon as vengeance is present, pleasure ensues, and so much the greater according as the sorrow was greater. Therefore if vengeance be really present, perfect pleasure ensues, entirely excluding sorrow, so that the movement of anger ceases. But before vengeance is really present, it becomes present to the angry man in two ways: in one way, by hope; because none is angry except he hopes for vengeance, as stated above (Q. 46, A. 1); in another way, by thinking of it continually, for to everyone that desires a thing it is pleasant to dwell on the thought of what he desires; wherefore the imaginings of dreams are pleasant. Accordingly an angry man takes pleasure in thinking much about vengeance. This pleasure, however, is not perfect, so as to banish sorrow and consequently anger.

Reply Obj. 1: The angry man does not grieve and rejoice at the same thing; he grieves for the wrong done, while he takes pleasure in the thought and hope of vengeance. Consequently sorrow is to anger as its beginning; while pleasure is the effect or terminus of anger.

Reply Obj. 2: This argument holds in regard to pleasure caused by the real presence of vengeance, which banishes anger altogether.

Reply Obj. 3: Pleasure that precedes hinders sorrow from ensuing, and consequently is a hindrance to anger. But pleasure felt in taking vengeance follows from anger.

SECOND ARTICLE [I-II, Q. 48, Art. 2]

Whether Anger Above All Causes Fervor in the Heart?

Objection 1: It would seem that heat is not above all the effect of anger. For fervor, as stated above (Q. 28, A. 5; Q. 37, A. 2), belongs to love. But love, as above stated, is the beginning and cause of all the passions. Since then the cause is more powerful than its effect, it seems that anger is not the chief cause of fervor.

Obj. 2: Further, those things which, of themselves, arouse fervor, increase as time goes on; thus love grows stronger the longer it lasts. But in course of time anger grows weaker; for the Philosopher says (Rhet. ii, 3) that "time puts an end to anger." Therefore fervor is not the proper effect of anger.

Obj. 3: Further, fervor added to fervor produces greater fervor. But "the addition of a greater anger banishes already existing anger," as the Philosopher says (Rhet. ii, 3). Therefore anger does not cause fervor.

On the contrary, Damascene says (De Fide Orth. ii, 16) that "anger is fervor of the blood around the heart, resulting from an exhalation of the bile."

I answer that, As stated above (Q. 44, A. 1), the bodily transmutation that occurs in the passions of the soul is proportionate to the movement of the appetite. Now it is evident that every appetite, even the natural appetite, tends with greater force to repel that which is contrary to it, if it be present: hence we see that hot water freezes harder, as though the cold acted with greater force on the hot object. Since then the appetitive movement of anger is caused by some injury inflicted, as by a contrary that is present; it follows that the appetite tends with great force to repel the injury by the desire of vengeance; and hence ensues great vehemence and impetuosity in the movement of anger. And because the movement of anger is not one of recoil, which corresponds to the action of cold, but one of prosecution, which corresponds to the action of heat, the result is that the movement of anger produces fervor of the blood and vital spirits around the heart, which is the instrument of the soul's passions. And hence it is that, on account of the heart being so disturbed by anger, those chiefly who are angry betray signs thereof in their outer members. For, as Gregory says (Moral. v, 30) "the heart that is inflamed with the stings of its own anger beats quick, the body trembles, the tongue stammers, the countenance takes fire, the eyes grow fierce, they that are well known are not recognized. With the mouth indeed he shapes a sound, but the understanding knows not what it says."

Reply Obj. 1: "Love itself is not felt so keenly as in the absence of the beloved," as Augustine observes (De Trin. x, 12). Consequently when a man suffers from a hurt done to the excellence that he loves, he feels his love thereof the more: the result being that his heart is moved with greater heat to remove the hindrance to the object of his love; so that anger increases the fervor of love and makes it to be felt more.

Nevertheless, the fervor arising from heat differs according as it is to be referred to love or to anger. Because the fervor of love has a certain sweetness and gentleness; for it tends to the good that one loves: whence it is likened to the warmth of the air and of the blood. For this reason sanguine temperaments are more inclined to love; and hence the saying that "love springs from the liver," because of the blood being formed there. On the other hand, the fervor of anger has a certain bitterness with a tendency to destroy, for it seeks to be avenged on the contrary evil: whence it is likened to the heat of fire and of the bile, and for this reason Damascene says (De Fide Orth. ii, 16) that it "results from an exhalation of the bile whence it takes its name chole."

Reply Obj. 2: Time, of necessity, weakens all those things, the causes of which are impaired by time. Now it is evident that memory is weakened by time; for things which happened long ago easily slip from our memory. But anger is caused by the memory of a wrong done. Consequently the cause of anger is impaired little by little as time goes on, until at length it vanishes altogether. Moreover a wrong seems greater when it is first felt; and our estimate thereof is gradually lessened the further the sense of present wrong recedes into the past. The same applies to love, so long as the cause of love is in the memory alone; wherefore the Philosopher says (Ethic. viii, 5) that "if a friend's absence lasts long, it seems to make men forget their friendship." But in the presence of a friend, the cause of friendship is continually being multiplied by time: wherefore the friendship increases: and the same would apply to anger, were its cause continually multiplied.

Nevertheless the very fact that anger soon spends itself proves the strength of its fervor: for as a great fire is soon spent having burnt up all the fuel; so too anger, by reason of its vehemence, soon dies away.

Reply Obj. 3: Every power that is divided in itself is weakened. Consequently if a man being already angry with one, becomes angry with another, by this very fact his anger with the former is weakened. Especially is this so if his anger in the second case be greater: because the wrong done which aroused his former anger, will, in comparison with the second wrong, which is reckoned greater, seem to be of little or no account.

THIRD ARTICLE [I-II, Q. 48, Art. 3]

Whether Anger Above All Hinders the Use of Reason?

Objection 1: It would seem that anger does not hinder the use of reason. Because that which presupposes an act of reason, does not seem to hinder the use of reason. But "anger listens to reason," as stated in Ethic. vii, 6. Therefore anger does not hinder reason.

Obj. 2: Further, the more the reason is hindered, the less does a man show his thoughts. But the Philosopher says (Ethic. vii, 6) that "an angry man is not cunning but is open." Therefore anger does not seem to hinder the use of reason, as desire does; for desire is cunning, as he also states (Ethic. vii, 6.).

Obj. 3: Further, the judgment of reason becomes more evident by juxtaposition of the contrary: because contraries stand out more clearly when placed beside one another. But this also increases anger: for the Philosopher says (Rhet. ii, 2) that "men are more angry if they receive unwonted treatment; for instance, honorable men, if they be dishonored": and so forth. Therefore the same cause increases anger, and facilitates the judgment of reason. Therefore anger does not hinder the judgment of reason.

On the contrary, Gregory says (Moral. v, 30) that anger "withdraws the light of understanding, while by agitating it troubles the mind."

I answer that, Although the mind or reason makes no use of a bodily organ in its proper act, yet, since it needs certain sensitive powers for the execution of its act, the acts of which powers are hindered when the body is disturbed, it follows of necessity that any disturbance in the body hinders even the judgment of reason; as is clear in the case of drunkenness or sleep. Now it has been stated (A. 2) that anger, above all, causes a bodily disturbance in the region of the heart, so much as to effect even the outward members. Consequently, of all the passions, anger is the most manifest obstacle to the judgment of reason, according to Ps. 30:10: "My eye is troubled with wrath."

Reply Obj. 1: The beginning of anger is in the reason, as regards the appetitive movement, which is the formal element of anger. But the passion of anger forestalls the perfect judgment of reason, as though it listened but imperfectly to reason, on account of the commotion of the heat urging to instant action, which commotion is the material element of anger. In this respect it hinders the judgment of reason.

Reply Obj. 2: An angry man is said to be open, not because it is clear to him what he ought to do, but because he acts openly, without thought of hiding himself. This is due partly to the reason being hindered, so as not to discern what should be hidden and what done openly, nor to devise the means of hiding; and partly to the dilatation of the heart which pertains to magnanimity which is an effect of anger: wherefore the Philosopher says of the magnanimous man (Ethic. iv, 3) that "he is open in his hatreds and his friendships . . . and speaks and acts openly." Desire, on the other hand, is said to lie low and to be cunning, because, in many cases, the pleasurable things that are desired, savor of shame and voluptuousness, wherein man wishes not to be seen. But in those things that savor of manliness and excellence, such as matters of vengeance, man seeks to be in the open.

Reply Obj. 3: As stated above (ad 1), the movement of anger begins in the reason, wherefore the juxtaposition of one contrary with another facilitates the judgment of reason, on the same grounds as it increases anger. For when a man who is possessed of honor or wealth, suffers a loss therein, the loss seems all the greater, both on account of the contrast, and because it was unforeseen. Consequently it causes greater grief: just as a great good, through being received unexpectedly, causes greater delight. And in proportion to the increase of the grief that precedes, anger is increased also.

FOURTH ARTICLE [I-II, Q. 48, Art. 4]

Whether Anger Above All Causes Taciturnity?

Objection 1: It would seem that anger does not cause taciturnity. Because taciturnity is opposed to speech. But increase in anger conduces to speech; as is evident from the degrees of anger laid down by Our Lord (Matt. 5:22): where He says: "Whosoever is angry with his brother"; and " . . . whosoever shall say to his brother, 'Raca'"; and " . . . whosoever shall say to his brother, 'Thou fool.'" Therefore anger does not cause taciturnity.

Obj. 2: Further, through failing to obey reason, man sometimes breaks out into unbecoming words: hence it is written (Prov. 25:28): "As a city that lieth open and is not compassed with walls, so is a man that cannot refrain his own spirit in speaking." But anger, above all, hinders the judgment of reason, as stated above (A. 3). Consequently above all it makes one break out into unbecoming words. Therefore it does not cause taciturnity.

Obj. 3: Further, it is written (Matt. 12:34): "Out of the abundance of the heart the mouth speaketh." But anger, above all, causes a disturbance in the heart, as stated above (A. 2). Therefore above all it conduces to speech. Therefore it does not cause taciturnity.

On the contrary, Gregory says (Moral. v, 30) that "when anger does not vent itself outwardly by the lips, inwardly it burns the more fiercely."

I answer that, As stated above (A. 3; Q. 46, A. 4), anger both follows an act of reason, and hinders the reason: and in both respects it may cause taciturnity. On the part of the reason, when the judgment of reason prevails so far, that although it does not curb the appetite in its inordinate desire for vengeance, yet it curbs the tongue from unbridled speech. Wherefore Gregory says (Moral. v, 30): "Sometimes when the mind is disturbed, anger, as if in judgment, commands silence." On the part of the impediment to reason because, as stated above (A. 2), the disturbance of anger reaches to the outward members, and chiefly to those members which reflect more distinctly the emotions of the heart, such as the eyes, face and tongue; wherefore, as observed above (A. 2), "the tongue stammers, the countenance takes fire, the eyes grow fierce." Consequently anger may cause such a disturbance, that the tongue is altogether deprived of speech; and taciturnity is the result.

Reply Obj. 1: Anger sometimes goes so far as to hinder the reason from curbing the tongue: but sometimes it goes yet farther, so as to paralyze the tongue and other outward members.

And this suffices for the Reply to the Second Objection.

Reply Obj. 3: The disturbance of the heart may sometimes superabound to the extend that the movements of the outward members are hindered by the inordinate movement of the heart. Thence ensue taciturnity and immobility of the outward members; and sometimes even death. If, however, the disturbance be not so great, then "out of the abundance of the heart" thus disturbed, the mouth proceeds to speak.

TREATISE ON HABITS (QQ. 49-54)

QUESTION 49

OF HABITS IN GENERAL, AS TO THEIR SUBSTANCE (In Four Articles)

After treating of human acts and passions, we now pass on to the consideration of the principles of human acts, and firstly of intrinsic principles, secondly of extrinsic principles. The intrinsic principle is power and habit; but as we have treated of powers in the First Part (Q. 77, seqq.), it remains for us to consider them in general: in the second place we shall consider virtues and vices and other like habits, which are the principles of human acts.

Concerning habits in general there are four points to consider: First, the substance of habits; second, their subject; third, the cause of their generation, increase, and corruption; fourth, how they are distinguished from one another.

Under the first head, there are four points of inquiry:

(1) Whether habit is a quality?

(2) Whether it is a distinct species of quality?

(3) Whether habit implies an order to an act?

(4) Of the necessity of habit.

FIRST ARTICLE [I-II, Q. 49, Art. 1]

Whether Habit Is a Quality?

Objection 1: It would seem that habit is not a quality. For Augustine says (QQ. lxxxiii, qu. 73): "this word 'habit' is derived from the verb 'to have.'" But "to have" belongs not only to quality, but also to the other categories: for we speak of ourselves as "having" quantity and money and other like things. Therefore habit is not a quality.

Obj. 2: Further, habit is reckoned as one of the predicaments; as may be clearly seen in the Book on the Predicaments (Categor. vi). But one predicament is not contained under another. Therefore habit is not a quality.

Obj. 3: Further, "every habit is a disposition," as is stated in the Book of the Predicaments (Categor. vi). Now disposition is "the order of that which has parts," as stated in Metaph. v, text. 24. But this belongs to the predicament Position. Therefore habit is not a quality.

On the contrary, The Philosopher says in the Book of Predicaments (Categor. vi) that "habit is a quality which is difficult to change."

I answer that, This word habitus (habit) is derived from habere (to have). Now habit is taken from this word in two ways; in one way, inasmuch as man, or any other thing, is said to "have" something; in another way, inasmuch as a particular thing has a relation (se habet) either in regard to itself, or in regard to something else.

Concerning the first, we must observe that "to have," as said in regard to anything that is "had," is common to the various predicaments. And so the Philosopher puts "to have" among the "post-predicaments," so called because they result from the various predicaments; as, for instance, opposition, priority, posterity, and such like. Now among things which are had, there seems to be this distinction, that there are some in which there is no medium between the "haver" and that which is had: as, for instance, there is no medium between the subject and quality or quantity. Then there are some in which there is a medium, but only a relation: as, for instance, a man is said to have a companion or a friend. And, further, there are some in which there is a medium, not indeed an action or passion, but something after the manner of action or passion: thus, for instance, something adorns or covers, and something else is adorned or covered: wherefore the Philosopher says (Metaph. v, text. 25) that "a habit is said to be, as it were, an action or a passion of the haver and that which is had"; as is the case in those things which we have about ourselves. And therefore these constitute a special genus of things, which are comprised under the predicament of "habit": of which the Philosopher says (Metaph. v, text. 25) that "there is a habit between clothing and the man who is clothed."

But if "to have" be taken according as a thing has a relation in regard to itself or to something else; in that case habit is a quality; since this mode of having is in respect of some quality: and of this the Philosopher says (Metaph. v, text. 25) that "habit is a disposition whereby that which is disposed is disposed well or ill, and this, either in regard to itself or in regard to another: thus health is a habit." And in this sense we speak of habit now. Wherefore we must say that habit is a quality.

Reply Obj. 1: This argument takes "to have" in the general sense: for thus it is common to many predicaments, as we have said.

Reply Obj. 2: This argument takes habit in the sense in which we understand it to be a medium between the haver, and that which is had: and in this sense it is a predicament, as we have said.

Reply Obj. 3: Disposition does always, indeed, imply an order of that which has parts: but this happens in three ways, as the Philosopher goes on at once to says (Metaph. v, text. 25): namely, "either as to place, or as to power, or as to species." "In saying this," as Simplicius observes in his Commentary on the Predicaments, "he includes all dispositions: bodily dispositions, when he says 'as to place,'" and this belongs to the predicament "Position," which is the order of parts in a place: "when he says 'as to power,' he includes all those dispositions which are in course of formation and not yet arrived at perfect usefulness," such as inchoate science and virtue: "and when he says, 'as to species,' he includes perfect dispositions, which are called habits," such as perfected science and virtue.

SECOND ARTICLE [I-II, Q. 49, Art. 2]

Whether Habit Is a Distinct Species of Quality?

Objection 1: It would seem that habit is not a distinct species of quality. Because, as we have said (A. 1), habit, in so far as it is a quality, is "a disposition whereby that which is disposed is disposed well or ill." But this happens in regard to any quality: for a thing happens to be well or ill disposed in regard also to shape, and in like manner, in regard to heat and cold, and in regard to all such things. Therefore habit is not a distinct species of quality.

Obj. 2: Further, the Philosopher says in the Book of the Predicaments (Categor. vi), that heat and cold are dispositions or habits, just as sickness and health. Therefore habit or disposition is not distinct from the other species of quality.

Obj. 3: Further, "difficult to change" is not a difference belonging to the predicament of quality, but rather to movement or passion. Now, no genus should be contracted to a species by a difference of another genus; but "differences should be proper to a genus," as the Philosopher says in Metaph. vii, text. 42. Therefore, since habit is "a quality difficult to change," it seems not to be a distinct species of quality.

On the contrary, The Philosopher says in the Book of the Predicaments (Categor. vi) that "one species of quality is habit and disposition."

I answer that, The Philosopher in the Book of Predicaments (Categor. vi) reckons disposition and habit as the first species of quality. Now Simplicius, in his Commentary on the Predicaments, explains the difference of these species as follows. He says "that some qualities are natural, and are in their subject in virtue of its nature, and are always there: but some are adventitious, being caused from without, and these can be lost. Now the latter," i.e. those which are adventitious, "are habits and dispositions, differing in the point of being easily or difficultly lost. As to natural qualities, some regard a thing in the point of its being in a state of potentiality; and thus we have the second species of quality: while others regard a thing which is in act; and this either deeply rooted therein or only on its surface. If deeply rooted, we have the third species of quality: if on the surface, we have the fourth species of quality, as shape, and form which is the shape of an animated being." But this distinction of the species of quality seems unsuitable. For there are many shapes, and passion-like qualities, which are not natural but adventitious: and there are also many dispositions which are not adventitious but natural, as health, beauty, and the like. Moreover, it does not suit the order of the species, since that which is the more natural is always first.

Therefore we must explain otherwise the distinction of dispositions and habits from other qualities. For quality, properly speaking, implies a certain mode of substance. Now mode, as Augustine says (Gen. ad lit. iv, 3), "is that which a measure determines": wherefore it implies a certain determination according to a certain measure. Therefore, just as that in accordance with which the material potentiality (potentia materiae) is determined to its substantial being, is called quality, which is a difference affecting the substance, so that, in accordance with the potentiality of the subject is determined to its accidental being, is called an accidental quality, which is also a kind of difference, as is clear from the Philosopher (Metaph. v, text. 19).

Now the mode o[r] determination of the subject to accidental being may be taken in regard to the very nature of the subject, or in regard to action, and passion resulting from its natural principles, which are matter and form; or again in regard to quantity. If we take the mode or determination of the subject in regard to quantity, we shall then have the fourth species of quality. And because quantity, considered in itself, is devoid of movement, and does not imply the notion of good or evil, so it does not concern the fourth species of quality whether a thing be well or ill disposed, nor quickly or slowly transitory.

But the mode o[r] determination of the subject, in regard to action or passion, is considered in the second and third species of quality. And therefore in both, we take into account whether a thing be done with ease or difficulty; whether it be transitory or lasting. But in them, we do not consider anything pertaining to the notion of good or evil: because movements and passions have not the aspect of an end, whereas good and evil are said in respect of an end.

On the other hand, the mode or determination of the subject, in regard to the nature of the thing, belongs to the first species of quality, which is habit and disposition: for the Philosopher says (Phys. vii, text. 17), when speaking of habits of the soul and of the body, that they are "dispositions of the perfect to the best; and by perfect I mean that which is disposed in accordance with its nature." And since the form itself and the nature of a thing is the end and the cause why a thing is made (Phys. ii, text. 25), therefore in the first species we consider both evil and good, and also changeableness, whether easy or difficult; inasmuch as a certain nature is the end of generation and movement. And so the Philosopher (Metaph. v, text. 25) defines habit, a "disposition whereby someone is disposed, well or ill"; and in Ethic. ii, 4, he says that by "habits we are directed well or ill in reference to the passions." For when the mode is suitable to the thing's nature, it has the aspect of good: and when it is unsuitable, it has the aspect of evil. And since nature is the first object of consideration in anything, for this reason habit is reckoned as the first species of quality.

Reply Obj. 1: Disposition implies a certain order, as stated above (A. 1, ad 3). Wherefore a man is not said to be disposed by some quality except in relation to something else. And if we add "well or ill," which belongs to the essential notion of habit, we must consider the quality's relation to the nature, which is the end. So in regard to shape, or heat, or cold, a man is not said to be well or ill disposed, except by reason of a relation to the nature of a thing, with regard to its suitability or unsuitability. Consequently even shapes and passion-like qualities, in so far as they are considered to be suitable or unsuitable to the nature of a thing, belong to habits or dispositions: for shape and color, according to their suitability to the nature of thing, concern beauty; while heat and cold, according to their suitability to the nature of a thing, concern health. And in this way heat and cold are put, by the Philosopher, in the first species of quality.

Wherefore it is clear how to answer the second objection: though some give another solution, as Simplicius says in his Commentary on the Predicaments.

Reply Obj. 3: This difference, "difficult to change," does not distinguish habit from the other species of quality, but from disposition. Now disposition may be taken in two ways; in one way, as the genus of habit, for disposition is included in the definition of habit (Metaph. v, text. 25): in another way, according as it is divided against habit. Again, disposition, properly so called, can be divided against habit in two ways: first, as perfect and imperfect within the same species; and thus we call it a disposition, retaining the name of the genus, when it is had imperfectly, so as to be easily lost: whereas we call it a habit, when it is had perfectly, so as not to be lost easily. And thus a disposition becomes a habit, just as a boy becomes a man. Secondly, they may be distinguished as diverse species of the one subaltern genus: so that we call dispositions, those qualities of the first species, which by reason of their very nature are easily lost, because they have changeable causes; e.g. sickness and health: whereas we call habits those qualities which, by reason of their very nature, are not easily changed, in that they have unchangeable causes, e.g. sciences and virtues. And in this sense, disposition does not become habit. The latter explanation seems more in keeping with the intention of Aristotle: for in order to confirm this distinction he adduces the common mode of speaking, according to which, when a quality is, by reason of its nature, easily changeable, and, through some accident, becomes difficultly changeable, then it is called a habit: while the contrary happens in regard to qualities, by reason of their nature, difficultly changeable: for supposing a man to have a science imperfectly, so as to be liable to lose it easily, we say that he is disposed to that science, rather than that he has the science. From this it is clear that the word "habit" implies a certain lastingness: while the word "disposition" does not.

Nor does it matter that thus to be easy and difficult to change are specific differences (of a quality), although they belong to passion and movement, and not the genus of quality. For these differences, though apparently accidental to quality, nevertheless designate differences which are proper and essential to quality. In the same way, in the genus of substance we often take accidental instead of substantial differences, in so far as by the former, essential principles are designated.

THIRD ARTICLE [I-II, Q. 49, Art. 3]

Whether Habit Implies Order to an Act?

Objection 1: It would seem that habit does not imply order to an act. For everything acts according as it is in act. But the Philosopher says (De Anima iii, text 8), that "when one is become knowing by habit, one is still in a state of potentiality, but otherwise than before learning." Therefore habit does not imply the relation of a principle to an act.

Obj. 2: Further, that which is put in the definition of a thing, belongs to it essentially. But to be a principle of action, is put in the definition of power, as we read in Metaph. v, text. 17. Therefore to be the principle of an act belongs to power essentially. Now that which is essential is first in every genus. If therefore, habit also is a principle of act, it follows that it is posterior to power. And so habit and disposition will not be the first species of quality.

Obj. 3: Further, health is sometimes a habit, and so are leanness and beauty. But these do not indicate relation to an act. Therefore it is not essential to habit to be a principle of act.

On the contrary, Augustine says (De Bono Conjug. xxi) that "habit is that whereby something is done when necessary." And the Commentator says (De Anima iii) that "habit is that whereby we act when we will."

I answer that, To have relation to an act may belong to habit, both in regard to the nature of habit, and in regard to the subject in which the habit is. In regard to the nature of habit, it belongs to every habit to have relation to an act. For it is essential to habit to imply some relation to a thing's nature, in so far as it is suitable or unsuitable thereto. But a thing's nature, which is the end of generation, is further ordained to another end, which is either an operation, or the product of an operation, to which one attains by means of operation. Wherefore habit implies relation not only to the very nature of a thing, but also, consequently, to operation, inasmuch as this is the end of nature, or conducive to the end. Whence also it is stated (Metaph. v, text. 25) in the definition of habit, that it is a disposition whereby that which is disposed, is well or ill disposed either in regard to itself, that is to its nature, or in regard to something else, that is to the end.

But there are some habits, which even on the part of the subject in which they are, imply primarily and principally relation to an act. For, as we have said, habit primarily and of itself implies a relation to the thing's nature. If therefore the nature of a thing, in which the habit is, consists in this very relation to an act, it follows that the habit principally implies relation to an act. Now it is clear that the nature and the notion of power is that it should be a principle of act. Wherefore every habit is subjected in a power, implies principally relation to an act.

Reply Obj. 1: Habit is an act, in so far as it is a quality: and in this respect it can be a principle of operation. It is, however, in a state of potentiality in respect to operation. Wherefore habit is called first act, and operation, second act; as it is explained in De Anima ii, text. 5.

Reply Obj. 2: It is not the essence of habit to be related to power, but to be related to nature. And as nature precedes action, to which power is related, therefore habit is put before power as a species of quality.

Reply Obj. 3: Health is said to be a habit, or a habitual disposition, in relation to nature, as stated above. But in so far as nature is a principle of act, it consequently implies a relation to act. Wherefore the Philosopher says (De Hist. Animal. x, 1), that man, or one of his members, is called healthy, "when he can perform the operation of a healthy man." And the same applies to other habits.

FOURTH ARTICLE [I-II, Q. 49, Art. 4]

Whether Habits Are Necessary?

Objection 1: It would seem that habits are not necessary. For by habits we are well or ill disposed in respect of something, as stated above. But a thing is well or ill disposed by its form: for in respect of its form a thing is good, even as it is a being. Therefore there is no necessity for habits.

Obj. 2: Further, habit implies relation to an act. But power implies sufficiently a principle of act: for even the natural powers, without any habits, are principles of acts. Therefore there was no necessity for habits.

Obj. 3: Further, as power is related to good and evil, so also is habit: and as power does not always act, so neither does habit. Given, therefore, the powers, habits become superfluous.

On the contrary, Habits are perfections (Phys. vii, text. 17). But perfection is of the greatest necessity to a thing: since it is in the nature of an end. Therefore it is necessary that there should be habits.

I answer that, As we have said above (AA. 2, 3), habit implies a disposition in relation to a thing's nature, and to its operation or end, by reason of which disposition a thing is well or ill disposed thereto. Now for a thing to need to be disposed to something else, three conditions are necessary. The first condition is that which is disposed should be distinct from that to which it is disposed; and so, that it should be related to it as potentiality is to act. Whence, if there is a being whose nature is not composed of potentiality and act, and whose substance is its own operation, which itself is for itself, there we can find no room for habit and disposition, as is clearly the case in God.

The second condition is, that that which is in a state of potentiality in regard to something else, be capable of determination in several ways and to various things. Whence if something be in a state of potentiality in regard to something else, but in regard to that only, there we find no room for disposition and habit: for such a subject from its own nature has the due relation to such an act. Wherefore if a heavenly body be composed of matter and form, since that matter is not in a state of potentiality to another form, as we said in the First Part (Q. 56, A. 2) there is no need for disposition or habit in respect of the form, or even in respect of operation, since the nature of the heavenly body is not in a state of potentiality to more than one fixed movement.

The third condition is that in disposing the subject to one of those things to which it is in potentiality, several things should occur, capable of being adjusted in various ways: so as to dispose the subject well or ill to its form or to its operation. Wherefore the simple qualities of the elements which suit the natures of the elements in one single fixed way, are not called dispositions or habits, but "simple qualities": but we call dispositions or habits, such things as health, beauty, and so forth, which imply the adjustment of several things which may vary in their relative adjustability. For this reason the Philosopher says (Metaph. v, text. 24, 25) that "habit is a disposition": and disposition is "the order of that which has parts either as to place, or as to potentiality, or as to species," as we have said above (A. 1, ad 3). Wherefore, since there are many things for whose natures and operations several things must concur which may vary in their relative adjustability, it follows that habit is necessary.

Reply Obj. 1: By the form the nature of a thing is perfected: yet the subject needs to be disposed in regard to the form by some disposition. But the form itself is further ordained to operation, which is either the end, or the means to the end. And if the form is limited to one fixed operation, no further disposition, besides the form itself, is needed for the operation. But if the form be such that it can operate in diverse ways, as the soul; it needs to be disposed to its operations by means of habits.

Reply Obj. 2: Power sometimes has a relation to many things: and then it needs to be determined by something else. But if a power has not a relation to many things, it does not need a habit to determine it, as we have said. For this reason the natural forces do not perform their operations by means of habits: because they are of themselves determined to one mode of operation.

Reply Obj. 3: The same habit has not a relation to good and evil, as will be made clear further on (Q. 54, A. 3): whereas the same power has a relation to good and evil. And, therefore, habits are necessary that the powers be determined to good.

QUESTION 50

OF THE SUBJECT OF HABITS (In Six Articles)

We consider next the subject of habits: and under this head there are six points of inquiry:

(1) Whether there is a habit in the body?

(2) Whether the soul is a subject of habit, in respect of its essence or in respect of its power?

(3) Whether in the powers of the sensitive part there can be a habit?

(4) Whether there is a habit in the intellect?

(5) Whether there is a habit in the will?

(6) Whether there is a habit in separate substances?

FIRST ARTICLE [I-II, Q. 50, Art. 1]

Whether There Is a Habit in the Body?

Objection 1: It would seem that there is not a habit in the body. For, as the Commentator says (De Anima iii), "a habit is that whereby we act when we will." But bodily actions are not subject to the will, since they are natural. Therefore there can be no habit in the body.

Obj. 2: Further, all bodily dispositions are easy to change. But habit is a quality, difficult to change. Therefore no bodily disposition can be a habit.

Obj. 3: Further, all bodily dispositions are subject to change. But change can only be in the third species of quality, which is divided against habit. Therefore there is no habit in the body.

On the contrary, The Philosopher says in the Book of Predicaments (De Categor. vi) that health of the body and incurable disease are called habits.

I answer that, As we have said above (Q. 49, AA. 2 seqq.), habit is a disposition of a subject which is in a state of potentiality either to form or to operation. Therefore in so far as habit implies disposition to operation, no habit is principally in the body as its subject. For every operation of the body proceeds either from a natural quality of the body or from the soul moving the body. Consequently, as to those operations which proceed from its nature, the body is not disposed by a habit: because the natural forces are determined to one mode of operation; and we have already said (Q. 49, A. 4) that it is when the subject is in potentiality to many things that a habitual disposition is required. As to the operations which proceed from the soul through the body, they belong principally to the soul, and secondarily to the body. Now habits are in proportion to their operations: whence "by like acts like habits are formed" (Ethic. ii, 1, 2). And therefore the dispositions to such operations are principally in the soul. But they can be secondarily in the body: to wit, in so far as the body is disposed and enabled with promptitude to help in the operations of the soul.

If, however, we speak of the disposition of the subject to form, thus a habitual disposition can be in the body, which is related to the soul as a subject is to its form. And in this way health and beauty and such like are called habitual dispositions. Yet they have not the nature of habit perfectly: because their causes, of their very nature, are easily changeable.

On the other hand, as Simplicius reports in his Commentary on the Predicaments, Alexander denied absolutely that habits or dispositions of the first species are in the body: and held that the first species of quality belonged to the soul alone. And he held that Aristotle mentions health and sickness in the Book on the Predicaments not as though they belonged to the first species of quality, but by way of example: so that he would mean that just as health and sickness may be easy or difficult to change, so also are all the qualities of the first species, which are called habits and dispositions. But this is clearly contrary to the intention of Aristotle: both because he speaks in the same way of health and sickness as examples, as of virtue and science; and because in Phys. vii, text. 17, he expressly mentions beauty and health among habits.

Reply Obj. 1: This objection runs in the sense of habit as a disposition to operation, and of those actions of the body which are from nature: but not in the sense of those actions which proceed from the soul, and the principle of which is the will.

Reply Obj. 2: Bodily dispositions are not simply difficult to change on account of the changeableness of their bodily causes. But they may be difficult to change by comparison to such a subject, because, to wit, as long as such a subject endures, they cannot be removed; or because they are difficult to change, by comparison to other dispositions. But qualities of the soul are simply difficult to change, on account of the unchangeableness of the subject. And therefore he does not say that health which is difficult to change is a habit simply: but that it is "as a habit," as we read in the Greek [*isos hexin (Categor. viii)]. On the other hand, the qualities of the soul are called habits simply.

Reply Obj. 3: Bodily dispositions which are in the first species of quality, as some maintained, differ from qualities of the third species, in this, that the qualities of the third species consist in some "becoming" and movement, as it were, wherefore they are called passions or passible qualities. But when they have attained to perfection (specific perfection, so to speak), they have then passed into the first species of quality. But Simplicius in his Commentary disapproves of this; for in this way heating would be in the third species, and heat in the first species of quality; whereas Aristotle puts heat in the third.

Wherefore Porphyrius, as Simplicius reports (Commentary), says that passion or passion-like quality, disposition and habit, differ in bodies by way of intensity and remissness. For when a thing receives heat in this only that it is being heated, and not so as to be able to give heat, then we have passion, if it is transitory; or passion-like quality if it is permanent. But when it has been brought to the point that it is able to heat something else, then it is a disposition; and if it goes so far as to be firmly fixed and to become difficult to change, then it will be a habit: so that disposition would be a certain intensity of passion or passion-like quality, and habit an intensity or disposition. But Simplicius disapproves of this, for such intensity and remissness do not imply diversity on the part of the form itself, but on the part of the diverse participation thereof by the subject; so that there would be no diversity among the species of quality. And therefore we must say otherwise that, as was explained above (Q. 49, A. 2, ad 1), the adjustment of the passion-like qualities themselves, according to their suitability to nature, implies the notion of disposition: and so, when a change takes place in these same passion-like qualities, which are heat and cold, moisture and dryness, there results a change as to sickness and health. But change does not occur in regard to like habits and dispositions, primarily and of themselves.

SECOND ARTICLE [I-II, Q. 50, art. 2]

Whether the Soul Is the Subject of Habit in Respect of Its Essence or in Respect of Its Power?

Objection 1: It would seem that habit is in the soul in respect of its essence rather than in respect of its powers. For we speak of dispositions and habits in relation to nature, as stated above (Q. 49, A. 2). But nature regards the essence of the soul rather than the powers; because it is in respect of its essence that the soul is the nature of such a body and the form thereof. Therefore habits are in the soul in respect of its essence and not in respect of its powers.

Obj. 2: Further, accident is not the subject of accident. Now habit is an accident. But the powers of the soul are in the genus of accident, as we have said in the First Part (Q. 77, A. 1, ad 5). Therefore habit is not in the soul in respect of its powers.

Obj. 3: Further, the subject is prior to that which is in the subject. But since habit belongs to the first species of quality, it is prior to power, which belongs to the second species. Therefore habit is not in a power of the soul as its subject.

On the contrary, The Philosopher (Ethic. i, 13) puts various habits in the various powers of the soul.

I answer that, As we have said above (Q. 49, AA. 2, 3), habit implies a certain disposition in relation to nature or to operation. If therefore we take habit as having a relation to nature, it cannot be in the soul—that is, if we speak of human nature: for the soul itself is the form completing the human nature; so that, regarded in this way, habit or disposition is rather to be found in the body by reason of its relation to the soul, than in the soul by reason of its relation to the body. But if we speak of a higher nature, of which man may become a partaker, according to 2 Pet. 1, "that we may be partakers of the Divine Nature": thus nothing hinders some habit, namely, grace, from being in the soul in respect of its essence, as we shall state later on (Q. 110, A. 4).

On the other hand, if we take habit in its relation to operation, it is chiefly thus that habits are found in the soul: in so far as the soul is not determined to one operation, but is indifferent to many, which is a condition for a habit, as we have said above (Q. 49, A. 4). And since the soul is the principle of operation through its powers, therefore, regarded in this sense, habits are in the soul in respect of its powers.

Reply Obj. 1: The essence of the soul belongs to human nature, not as a subject requiring to be disposed to something further, but as a form and nature to which someone is disposed.

Reply Obj. 2: Accident is not of itself the subject of accident. But since among accidents themselves there is a certain order, the subject, according as it is under one accident, is conceived as the subject of a further accident. In this way we say that one accident is the subject of another; as superficies is the subject of color, in which sense power is the subject of habit.

Reply Obj. 3: Habit takes precedence of power, according as it implies a disposition to nature: whereas power always implies a relation to operation, which is posterior, since nature is the principle of operation. But the habit whose subject is a power, does not imply relation to nature, but to operation. Wherefore it is posterior to power. Or, we may say that habit takes precedence of power, as the complete takes precedence of the incomplete, and as act takes precedence of potentiality. For act is naturally prior to potentiality, though potentiality is prior in order of generation and time, as stated in Metaph. vii, text. 17; ix, text. 13.

THIRD ARTICLE [I-II, Q. 50, Art. 3]

Whether There Can Be Any Habits in the Powers of the Sensitive Part?

Objection 1: It would seem that there cannot be any habits in the powers of the sensitive part. For as the nutritive power is an irrational part, so is the sensitive power. But there can be no habits in the powers of the nutritive part. Therefore we ought not to put any habit in the powers of the sensitive part.

Obj. 2: Further, the sensitive parts are common to us and the brutes. But there are not any habits in brutes: for in them there is no will, which is put in the definition of habit, as we have said above (Q. 49, A. 3). Therefore there are no habits in the sensitive powers.

Obj. 3: Further, the habits of the soul are sciences and virtues: and just as science is related to the apprehensive power, so it virtue related to the appetitive power. But in the sensitive powers there are no sciences: since science is of universals, which the sensitive powers cannot apprehend. Therefore, neither can there be habits of virtue in the sensitive part.

On the contrary, The Philosopher says (Ethic. iii, 10) that "some virtues," namely, temperance and fortitude, "belong to the irrational part."

I answer that, The sensitive powers can be considered in two ways: first, according as they act from natural instinct: secondly, according as they act at the command of reason. According as they act from natural instinct, they are ordained to one thing, even as nature is; but according as they act at the command of reason, they can be ordained to various things. And thus there can be habits in them, by which they are well or ill disposed in regard to something.

Reply Obj. 1: The powers of the nutritive part have not an inborn aptitude to obey the command of reason, and therefore there are no habits in them. But the sensitive powers have an inborn aptitude to obey the command of reason; and therefore habits can be in them: for in so far as they obey reason, in a certain sense they are said to be rational, as stated in Ethic. i, 13.

Reply Obj. 2: The sensitive powers of dumb animals do not act at the command of reason; but if they are left to themselves, such animals act from natural instinct: and so in them there are no habits ordained to operations. There are in them, however, certain dispositions in relation to nature, as health and beauty. But whereas by man's reason brutes are disposed by a sort of custom to do things in this or that way, so in this sense, to a certain extent, we can admit the existence of habits in dumb animals: wherefore Augustine says (QQ. lxxxiii, qu. 36): "We find the most untamed beasts, deterred by fear of pain, from that wherein they took the keenest pleasure; and when this has become a custom in them, we say that they are tame and gentle." But the habit is incomplete, as to the use of the will, for they have not that power of using or of refraining, which seems to belong to the notion of habit: and therefore, properly speaking, there can be no habits in them.

Reply Obj. 3: The sensitive appetite has an inborn aptitude to be moved by the rational appetite, as stated in De Anima iii, text. 57: but the rational powers of apprehension have an inborn aptitude to receive from the sensitive powers. And therefore it is more suitable that habits should be in the powers of sensitive appetite than in the powers of sensitive apprehension, since in the powers of sensitive appetite habits do not exist except according as they act at the command of the reason. And yet even in the interior powers of sensitive apprehension, we may admit of certain habits whereby man has a facility of memory, thought or imagination: wherefore also the Philosopher says (De Memor. et Remin. ii) that "custom conduces much to a good memory": the reason of which is that these powers also are moved to act at the command of the reason.

On the other hand the exterior apprehensive powers, as sight, hearing and the like, are not susceptible of habits, but are ordained to their fixed acts, according to the disposition of their nature, just as the members of the body, for there are no habits in them, but rather in the powers which command their movements.

FOURTH ARTICLE [I-II, Q. 50, Art. 4]

Whether There Is Any Habit in the Intellect?

Objection 1: It would seem that there are no habits in the intellect. For habits are in conformity with operations, as stated above (A. 1). But the operations of man are common to soul and body, as stated in De Anima i, text. 64. Therefore also are habits. But the intellect is not an act of the body (De Anima iii, text. 6). Therefore the intellect is not the subject of a habit.

Obj. 2: Further, whatever is in a thing, is there according to the mode of that in which it is. But that which is form without matter, is act only: whereas what is composed of form and matter, has potentiality and act at the same time. Therefore nothing at the same time potential and actual can be in that which is form only, but only in that which is composed of matter and form. Now the intellect is form without matter. Therefore habit, which has potentiality at the same time as act, being a sort of medium between the two, cannot be in the intellect; but only in the conjunction, which is composed of soul and body.

Obj. 3: Further, habit is a disposition whereby we are well or ill disposed in regard to something, as is said (Metaph. v, text. 25). But that anyone should be well or ill disposed to an act of the intellect is due to some disposition of the body: wherefore also it is stated (De Anima ii, text. 94) that "we observe men with soft flesh to be quick witted." Therefore the habits of knowledge are not in the intellect, which is separate, but in some power which is the act of some part of the body.

On the contrary, The Philosopher (Ethic. vi, 2, 3, 10) puts science, wisdom and understanding, which is the habit of first principles, in the intellective part of the soul.

I answer that, concerning intellective habits there have been various opinions. Some, supposing that there was only one possible [*See First Part, Q. 79, A. 2, ad 2] intellect for all men, were bound to hold that habits of knowledge are not in the intellect itself, but in the interior sensitive powers. For it is manifest that men differ in habits; and so it was impossible to put the habits of knowledge directly in that, which, being only one, would be common to all men. Wherefore if there were but one single "possible" intellect of all men, the habits of science, in which men differ from one another, could not be in the "possible" intellect as their subject, but would be in the interior sensitive powers, which differ in various men.

Now, in the first place, this supposition is contrary to the mind of Aristotle. For it is manifest that the sensitive powers are rational, not by their essence, but only by participation (Ethic. i, 13). Now the Philosopher puts the intellectual virtues, which are wisdom, science and understanding, in that which is rational by its essence. Wherefore they are not in the sensitive powers, but in the intellect itself. Moreover he says expressly (De Anima iii, text. 8, 18) that when the "possible" intellect "is thus identified with each thing," that is, when it is reduced to act in respect of singulars by the intelligible species, "then it is said to be in act, as the knower is said to be in act; and this happens when the intellect can act of itself," i.e. by considering: "and even then it is in potentiality in a sense; but not in the same way as before learning and discovering." Therefore the "possible" intellect itself is the subject of the habit of science, by which the intellect, even though it be not actually considering, is able to consider. In the second place, this supposition is contrary to the truth. For as to whom belongs the operation, belongs also the power to operate, belongs also the habit. But to understand and to consider is the proper act of the intellect. Therefore also the habit whereby one considers is properly in the intellect itself.

Reply Obj. 1: Some said, as Simplicius reports in his Commentary on the Predicaments, that, since every operation of man is to a certain extent an operation of the conjunctum, as the Philosopher says (De Anima i, text. 64); therefore no habit is in the soul only, but in the conjunctum. And from this it follows that no habit is in the intellect, for the intellect is separate, as ran the argument, given above. But the argument is not cogent. For habit is not a disposition of the object to the power, but rather a disposition of the power to the object: wherefore the habit needs to be in that power which is principle of the act, and not in that which is compared to the power as its object.

Now the act of understanding is not said to be common to soul and body, except in respect of the phantasm, as is stated in De Anima, text. 66. But it is clear that the phantasm is compared as object to the passive intellect (De Anima iii, text. 3, 39). Whence it follows that the intellective habit is chiefly on the part of the intellect itself; and not on the part of the phantasm, which is common to soul and body. And therefore we must say that the "possible" intellect is the subject of habit, which is in potentiality to many: and this belongs, above all, to the "possible" intellect. Wherefore the "possible" intellect is the subject of intellectual habits.

Reply Obj. 2: As potentiality to sensible being belongs to corporeal matter, so potentiality to intellectual being belongs to the "possible" intellect. Wherefore nothing forbids habit to be in the "possible" intellect, for it is midway between pure potentiality and perfect act.

Reply Obj. 3: Because the apprehensive powers inwardly prepare their proper objects for the possible intellect, therefore it is by the good disposition of these powers, to which the good disposition of the body cooperates, that man is rendered apt to understand. And so in a secondary way the intellective habit can be in these powers. But principally it is in the "possible" intellect.

FIFTH ARTICLE [I-II, Q. 50, Art. 5]

Whether Any Habit Is in the Will?

Objection 1: It would seem that there is not a habit in the will. For the habit which is in the intellect is the intelligible species, by means of which the intellect actually understands. But the will does not act by means of species. Therefore the will is not the subject of habit.

Obj. 2: Further, no habit is allotted to the active intellect, as there is to the "possible" intellect, because the former is an active power. But the will is above all an active power, because it moves all the powers to their acts, as stated above (Q. 9, A. 1). Therefore there is no habit in the will.

Obj. 3: Further, in the natural powers there is no habit, because, by reason of their nature, they are determinate to one thing. But the will, by reason of its nature, is ordained to tend to the good which reason directs. Therefore there is no habit in the will.

On the contrary, Justice is a habit. But justice is in the will; for it is "a habit whereby men will and do that which is just" (Ethic. v, 1). Therefore the will is the subject of a habit.

I answer that, Every power which may be variously directed to act, needs a habit whereby it is well disposed to its act. Now since the will is a rational power, it may be variously directed to act. And therefore in the will we must admit the presence of a habit whereby it is well disposed to its act. Moreover, from the very nature of habit, it is clear that it is principally related to the will; inasmuch as habit "is that which one uses when one wills," as stated above (A. 1).

Reply Obj. 1: Even as in the intellect there is a species which is the likeness of the object; so in the will, and in every appetitive power there must be something by which the power is inclined to its object; for the act of the appetitive power is nothing but a certain inclination, as we have said above (Q. 6, A. 4; Q. 22, A. 2). And therefore in respect of those things to which it is inclined sufficiently by the nature of the power itself, the power needs no quality to incline it. But since it is necessary, for the end of human life, that the appetitive power be inclined to something fixed, to which it is not inclined by the nature of the power, which has a relation to many and various things, therefore it is necessary that, in the will and in the other appetitive powers, there be certain qualities to incline them, and these are called habits.

Reply Obj. 2: The active intellect is active only, and in no way passive. But the will, and every appetitive power, is both mover and moved (De Anima iii, text. 54). And therefore the comparison between them does not hold; for to be susceptible of habit belongs to that which is somehow in potentiality.

Reply Obj. 3: The will from the very nature of the power is inclined to the good of the reason. But because this good is varied in many ways, the will needs to be inclined, by means of a habit, to some fixed good of the reason, in order that action may follow more promptly.

SIXTH ARTICLE [I-II, Q. 50, Art. 6]

Whether There Are Habits in the Angels?

Objection 1: It would seem that there are no habits in the angels. For Maximus, commentator of Dionysius (Coel. Hier. vii), says: "It is not proper to suppose that there are intellectual (i.e. spiritual) powers in the divine intelligences (i.e. in the angels) after the manner of accidents, as in us: as though one were in the other as in a subject: for accident of any kind is foreign to them." But every habit is an accident. Therefore there are no habits in the angels.

Obj. 2: Further, as Dionysius says (Coel. Hier. iv): "The holy dispositions of the heavenly essences participate, above all other things, in God's goodness." But that which is of itself (per se) is prior to and more powerful than that which is by another (per aliud). Therefore the angelic essences are perfected of themselves unto conformity with God, and therefore not by means of habits. And this seems to have been the reasoning of Maximus, who in the same passage adds: "For if this were the case, surely their essence would not remain in itself, nor could it have been as far as possible deified of itself."

Obj. 3: Further, habit is a disposition (Metaph. v, text. 25). But disposition, as is said in the same book, is "the order of that which has parts." Since, therefore, angels are simple substances, it seems that there are no dispositions and habits in them.

On the contrary, Dionysius says (Coel. Hier. vii) that the angels of the first hierarchy are called: "Fire-bearers and Thrones and Outpouring of Wisdom, by which is indicated the godlike nature of their habits."

I answer that, Some have thought that there are no habits in the angels, and that whatever is said of them, is said essentially. Whence Maximus, after the words which we have quoted, says: "Their dispositions, and the powers which are in them, are essential, through the absence of matter in them." And Simplicius says the same in his Commentary on the Predicaments: "Wisdom which is in the soul is its habit: but that which is in the intellect, is its substance. For everything divine is sufficient of itself, and exists in itself."

Now this opinion contains some truth, and some error. For it is manifest from what we have said (Q. 49, A. 4) that only a being in potentiality is the subject of habit. So the above-mentioned commentators considered that angels are immaterial substances, and that there is no material potentiality in them, and on that account, excluded from them habit and any kind of accident. Yet since though there is no material potentiality in angels, there is still some potentiality in them (for to be pure act belongs to God alone), therefore, as far as potentiality is found to be in them, so far may habits be found in them. But because the potentiality of matter and the potentiality of intellectual substance are not of the same kind. Whence, Simplicius says in his Commentary on the Predicaments that: "The habits of the intellectual substance are not like the habits here below, but rather are they like simple and immaterial images which it contains in itself."

However, the angelic intellect and the human intellect differ with regard to this habit. For the human intellect, being the lowest in the intellectual order, is in potentiality as regards all intelligible things, just as primal matter is in respect of all sensible forms; and therefore for the understanding of all things, it needs some habit. But the angelic intellect is not as a pure potentiality in the order of intelligible things, but as an act; not indeed as pure act (for this belongs to God alone), but with an admixture of some potentiality: and the higher it is, the less potentiality it has. And therefore, as we said in the First Part (Q. 55, A. 1), so far as it is in potentiality, so far is it in need of habitual perfection by means of intelligible species in regard to its proper operation: but so far as it is in act, through its own essence it can understand some things, at least itself, and other things according to the mode of its substance, as stated in De Causis: and the more perfect it is, the more perfectly will it understand.

But since no angel attains to the perfection of God, but all are infinitely distant therefrom; for this reason, in order to attain to God Himself, through intellect and will, the angels need some habits, being as it were in potentiality in regard to that Pure Act. Wherefore Dionysius says (Coel. Hier. vii) that their habits are "godlike," that is to say, that by them they are made like to God.

But those habits that are dispositions to the natural being are not in angels, since they are immaterial.

Reply Obj. 1: This saying of Maximus must be understood of material habits and accidents.

Reply Obj. 2: As to that which belongs to angels by their essence, they do not need a habit. But as they are not so far beings of themselves, as not to partake of Divine wisdom and goodness, therefore, so far as they need to partake of something from without, so far do they need to have habits.

Reply Obj. 3: In angels there are no essential parts: but there are potential parts, in so far as their intellect is perfected by several species, and in so far as their will has a relation to several things.

QUESTION 51

OF THE CAUSE OF HABITS, AS TO THEIR FORMATION (In Four Articles)

We must next consider the cause of habits: and firstly, as to their formation; secondly, as to their increase; thirdly, as to their diminution and corruption. Under the first head there are four points of inquiry:

(1) Whether any habit is from nature?

(2) Whether any habit is caused by acts?

(3) Whether any habit can be caused by one act?

(4) Whether any habits are infused in man by God?

FIRST ARTICLE [I-II, Q. 51, Art. 1]

Whether Any Habit Is from Nature?

Objection 1: It would seem that no habit is from nature. For the use of those things which are from nature does not depend on the will. But habit "is that which we use when we will," as the Commentator says on De Anima iii. Therefore habit is not from nature.

Obj. 2: Further, nature does not employ two where one is sufficient. But the powers of the soul are from nature. If therefore the habits of the powers were from nature, habit and power would be one.

Obj. 3: Further, nature does not fail in necessaries. But habits are necessary in order to act well, as we have stated above (Q. 49, A. 4). If therefore any habits were from nature, it seems that nature would not fail to cause all necessary habits: but this is clearly false. Therefore habits are not from nature.

On the contrary, In Ethic. vi, 6, among other habits, place is given to understanding of first principles, which habit is from nature: wherefore also first principles are said to be known naturally.

I answer that, One thing can be natural to another in two ways. First in respect of the specific nature, as the faculty of laughing is natural to man, and it is natural to fire to have an upward tendency. Secondly, in respect of the individual nature, as it is natural to Socrates or Plato to be prone to sickness or inclined to health, in accordance with their respective temperaments. Again, in respect of both natures, something may be called natural in two ways: first, because it entirely is from the nature; secondly, because it is partly from nature, and partly from an extrinsic principle. For instance, when a man is healed by himself, his health is entirely from nature; but when a man is healed by means of medicine, health is partly from nature, partly from an extrinsic principle.

Thus, then, if we speak of habit as a disposition of the subject in relation to form or nature, it may be natural in either of the foregoing ways. For there is a certain natural disposition demanded by the human species, so that no man can be without it. And this disposition is natural in respect of the specific nature. But since such a disposition has a certain latitude, it happens that different grades of this disposition are becoming to different men in respect of the individual nature. And this disposition may be either entirely from nature, or partly from nature, and partly from an extrinsic principle, as we have said of those who are healed by means of art.

But the habit which is a disposition to operation, and whose subject is a power of the soul, as stated above (Q. 50, A. 2), may be natural whether in respect of the specific nature or in respect of the individual nature: in respect of the specific nature, on the part of the soul itself, which, since it is the form of the body, is the specific principle; but in respect of the individual nature, on the part of the body, which is the material principle. Yet in neither way does it happen that there are natural habits in man, so that they be entirely from nature. In the angels, indeed, this does happen, since they have intelligible species naturally impressed on them, which cannot be said of the human soul, as we have said in the First Part (Q. 55, A. 2; Q. 84, A. 3).

There are, therefore, in man certain natural habits, owing their existence, partly to nature, and partly to some extrinsic principle: in one way, indeed, in the apprehensive powers; in another way, in the appetitive powers. For in the apprehensive powers there may be a natural habit by way of a beginning, both in respect of the specific nature, and in respect of the individual nature. This happens with regard to the specific nature, on the part of the soul itself: thus the understanding of first principles is called a natural habit. For it is owing to the very nature of the intellectual soul that man, having once grasped what is a whole and what is a part, should at once perceive that every whole is larger than its part: and in like manner with regard to other such principles. Yet what is a whole, and what is a part—this he cannot know except through the intelligible species which he has received from phantasms: and for this reason, the Philosopher at the end of the Posterior Analytics shows that knowledge of principles comes to us from the senses.

But in respect of the individual nature, a habit of knowledge is natural as to its beginning, in so far as one man, from the disposition of his organs of sense, is more apt than another to understand well, since we need the sensitive powers for the operation of the intellect.

In the appetitive powers, however, no habit is natural in its beginning, on the part of the soul itself, as to the substance of the habit; but only as to certain principles thereof, as, for instance, the principles of common law are called the "nurseries of virtue." The reason of this is because the inclination to its proper objects, which seems to be the beginning of a habit, does not belong to the habit, but rather to the very nature of the powers.

But on the part of the body, in respect of the individual nature, there are some appetitive habits by way of natural beginnings. For some are disposed from their own bodily temperament to chastity or meekness or such like.

Reply Obj. 1: This objection takes nature as divided against reason and will; whereas reason itself and will belong to the nature of man.

Reply Obj. 2: Something may be added even naturally to the nature of a power, while it cannot belong to the power itself. For instance, with regard to the angels, it cannot belong to the intellective power itself capable of knowing all things: for thus it would have to be the act of all things, which belongs to God alone. Because that by which something is known, must needs be the actual likeness of the thing known: whence it would follow, if the power of the angel knew all things by itself, that it was the likeness and act of all things. Wherefore there must needs be added to the angels' intellective power, some intelligible species, which are likenesses of things understood: for it is by participation of the Divine wisdom and not by their own essence, that their intellect can be actually those things which they understand. And so it is clear that not everything belonging to a natural habit can belong to the power.

Reply Obj. 3: Nature is not equally inclined to cause all the various kinds of habits: since some can be caused by nature, and some not, as we have said above. And so it does not follow that because some habits are natural, therefore all are natural.

SECOND ARTICLE [I-II, Q. 51, Art. 2]

Whether Any Habit Is Caused by Acts?

Objection 1: It would seem that no habit is caused by acts. For habit is a quality, as we have said above (Q. 49, A. 1). Now every quality is caused in a subject, according to the latter's receptivity. Since then the agent, inasmuch as it acts, does not receive but rather gives: it seems impossible for a habit to be caused in an agent by its own acts.

Obj. 2: Further, the thing wherein a quality is caused is moved to that quality, as may be clearly seen in that which is heated or cooled: whereas that which produces the act that causes the quality, moves, as may be seen in that which heats or cools. If therefore habits were caused in anything by its own act, it would follow that the same would be mover and moved, active and passive: which is impossible, as stated in Physics iii, 8.

Obj. 3: Further, the effect cannot be more noble than its cause. But habit is more noble than the act which precedes the habit; as is clear from the fact that the latter produces more noble acts. Therefore habit cannot be caused by an act which precedes the habit.

On the contrary, The Philosopher (Ethic. ii, 1, 2) teaches that habits of virtue and vice are caused by acts.

I answer that, In the agent there is sometimes only the active principle of its act: for instance in fire there is only the active principle of heating. And in such an agent a habit cannot be caused by its own act: for which reason natural things cannot become accustomed or unaccustomed, as is stated in Ethic. ii, 1. But a certain agent is to be found, in which there is both the active and the passive principle of its act, as we see in human acts. For the acts of the appetitive power proceed from that same power according as it is moved by the apprehensive power presenting the object: and further, the intellective power, according as it reasons about conclusions, has, as it were, an active principle in a self-evident proposition. Wherefore by such acts habits can be caused in their agents; not indeed with regard to the first active principle, but with regard to that principle of the act, which principle is a mover moved. For everything that is passive and moved by another, is disposed by the action of the agent; wherefore if the acts be multiplied a certain quality is formed in the power which is passive and moved, which quality is called a habit: just as the habits of moral virtue are caused in the appetitive powers, according as they are moved by the reason, and as the habits of science are caused in the intellect, according as it is moved by first propositions.

Reply Obj. 1: The agent, as agent, does not receive anything. But in so far as it moves through being moved by another, it receives something from that which moves it: and thus is a habit caused.

Reply Obj. 2: The same thing, and in the same respect, cannot be mover and moved; but nothing prevents a thing from being moved by itself as to different respects, as is proved in Physics viii, text. 28, 29.

Reply Obj. 3: The act which precedes the habit, in so far as it comes from an active principle, proceeds from a more excellent principle than is the habit caused thereby: just as the reason is a more excellent principle than the habit of moral virtue produced in the appetitive power by repeated acts, and as the understanding of first principles is a more excellent principle than the science of conclusions.

THIRD ARTICLE [I-II, Q. 51, Art. 3]

Whether a Habit Can Be Caused by One Act?

Objection 1: It would seem that a habit can be caused by one act. For demonstration is an act of reason. But science, which is the habit of one conclusion, is caused by one demonstration. Therefore habit can be caused by one act.

Obj. 2: Further, as acts happen to increase by multiplication so do they happen to increase by intensity. But a habit is caused by multiplication of acts. Therefore also if an act be very intense, it can be the generating cause of a habit.

Obj. 3: Further, health and sickness are habits. But it happens that a man is healed or becomes ill, by one act. Therefore one act can cause a habit.

On the contrary, The Philosopher (Ethic. i, 7): "As neither does one swallow nor one day make spring: so neither does one day nor a short time make a man blessed and happy." But "happiness is an operation in respect of a habit of perfect virtue" (Ethic. i, 7, 10, 13). Therefore a habit of virtue, and for the same reason, other habits, is not caused by one act.

I answer that, As we have said already (A. 2), habit is caused by act, because a passive power is moved by an active principle. But in order that some quality be caused in that which is passive the active principle must entirely overcome the passive. Whence we see that because fire cannot at once overcome the combustible, it does not enkindle at once; but it gradually expels contrary dispositions, so that by overcoming it entirely, it may impress its likeness on it. Now it is clear that the active principle which is reason, cannot entirely overcome the appetitive power in one act: because the appetitive power is inclined variously, and to many things; while the reason judges in a single act, what should be willed in regard to various aspects and circumstances. Wherefore the appetitive power is not thereby entirely overcome, so as to be inclined like nature to the same thing, in the majority of cases; which inclination belongs to the habit of virtue. Therefore a habit of virtue cannot be caused by one act, but only by many.

But in the apprehensive powers, we must observe that there are two passive principles: one is the possible (See First Part, Q. 79, A. 2, ad 2) intellect itself; the other is the intellect which Aristotle (De Anima iii, text. 20) calls "passive," and is the "particular reason," that is the cogitative power, with memory and imagination. With regard then to the former passive principle, it is possible for a certain active principle to entirely overcome, by one act, the power of its passive principle: thus one self-evident proposition convinces the intellect, so that it gives a firm assent to the conclusion, but a probable proposition cannot do this. Wherefore a habit of opinion needs to be caused by many acts of the reason, even on the part of the "possible" intellect: whereas a habit of science can be caused by a single act of the reason, so far as the possible intellect is concerned. But with regard to the lower apprehensive powers, the same acts need to be repeated many times for anything to be firmly impressed on the memory. And so the Philosopher says (De Memor. et Remin. 1) that "meditation strengthens memory." Bodily habits, however, can be caused by one act, if the active principle is of great power: sometimes, for instance, a strong dose of medicine restores health at once.