(9) Whether they differ according to their various circumstances?

FIRST ARTICLE [I-II, Q. 72, Art. 1]

Whether Sins Differ in Species According to Their Objects?

Objection 1: It would seem that sins do not differ in species, according to their objects. For acts are said to be good or evil, in relation, chiefly, to their end, as shown above (Q. 1, A. 3; Q. 18, AA. 4, 6). Since then sin is nothing else than a bad human act, as stated above (Q. 71, A. 1), it seems that sins should differ specifically according to their ends rather than according to their objects.

Obj. 2: Further, evil, being a privation, differs specifically according to the different species of opposites. Now sin is an evil in the genus of human acts. Therefore sins differ specifically according to their opposites rather than according to their objects.

Obj. 3: Further, if sins differed specifically according to their objects, it would be impossible to find the same specific sin with diverse objects: and yet such sins are to be found. For pride is about things spiritual and material as Gregory says (Moral. xxxiv, 18); and avarice is about different kinds of things. Therefore sins do not differ in species according to their objects.

On the contrary, "Sin is a word, deed, or desire against God's law." Now words, deeds, and desires differ in species according to their various objects: since acts differ by their objects, as stated above (Q. 18, A. 2). Therefore sins, also differ in species according to their objects.

I answer that, As stated above (Q. 71, A. 6), two things concur in the nature of sin, viz. the voluntary act, and its inordinateness, which consists in departing from God's law. Of these two, one is referred essentially to the sinner, who intends such and such an act in such and such matter; while the other, viz. the inordinateness of the act, is referred accidentally to the intention of the sinner, for "no one acts intending evil," as Dionysius declares (Div. Nom. iv). Now it is evident that a thing derives its species from that which is essential and not from that which is accidental: because what is accidental is outside the specific nature. Consequently sins differ specifically on the part of the voluntary acts rather than of the inordinateness inherent to sin. Now voluntary acts differ in species according to their objects, as was proved above (Q. 18, A. 2). Therefore it follows that sins are properly distinguished in species by their objects.

Reply Obj. 1: The aspect of good is found chiefly in the end: and therefore the end stands in the relation of object to the act of the will which is at the root of every sin. Consequently it amounts to the same whether sins differ by their objects or by their ends.

Reply Obj. 2: Sin is not a pure privation but an act deprived of its due order: hence sins differ specifically according to the objects of their acts rather than according to their opposites, although, even if they were distinguished in reference to their opposite virtues, it would come to the same: since virtues differ specifically according to their objects, as stated above (Q. 60, A. 5).

Reply Obj. 3: In various things, differing in species or genus, nothing hinders our finding one formal aspect of the object, from which aspect sin receives its species. It is thus that pride seeks excellence in reference to various things; and avarice seeks abundance of things adapted to human use.

SECOND ARTICLE [I-II, Q. 72, Art. 2]

Whether Spiritual Sins Are Fittingly Distinguished from Carnal Sins?

Objection 1: It would seem that spiritual sins are unfittingly distinguished from carnal sins. For the Apostle says (Gal. 5:19): "The works of the flesh are manifest, which are fornication, uncleanness, immodesty, luxury, idolatry, witchcrafts," etc. from which it seems that all kinds of sins are works of the flesh. Now carnal sins are called works of the flesh. Therefore carnal sins should not be distinguished from spiritual sins.

Obj. 2: Further, whosoever sins, walks according to the flesh, as stated in Rom. 8:13: "If you live according to the flesh, you shall die. But if by the spirit you mortify the deeds of the flesh, you shall live." Now to live or walk according to the flesh seems to pertain to the nature of carnal sin. Therefore carnal sins should not be distinguished from spiritual sins.

Obj. 3: Further, the higher part of the soul, which is the mind or reason, is called the spirit, according to Eph. 4:23: "Be renewed in the spirit of your mind," where spirit stands for reason, according to a gloss. Now every sin, which is committed in accordance with the flesh, flows from the reason by its consent; since consent in a sinful act belongs to the higher reason, as we shall state further on (Q. 74, A. 7). Therefore the same sins are both carnal and spiritual, and consequently they should not be distinguished from one another.

Obj. 4: Further, if some sins are carnal specifically, this, seemingly, should apply chiefly to those sins whereby man sins against his own body. But, according to the Apostle (1 Cor. 6:18), "every sin that a man doth, is without the body: but he that committeth fornication, sinneth against his own body." Therefore fornication would be the only carnal sin, whereas the Apostle (Eph. 5:3) reckons covetousness with the carnal sins.

On the contrary, Gregory (Moral. xxxi, 17) says that "of the seven capital sins five are spiritual, and two carnal."

I answer that, As stated above (A. 1), sins take their species from their objects. Now every sin consists in the desire for some mutable good, for which man has an inordinate desire, and the possession of which gives him inordinate pleasure. Now, as explained above (Q. 31, A. 3), pleasure is twofold. One belongs to the soul, and is consummated in the mere apprehension of a thing possessed in accordance with desire; this can also be called spiritual pleasure, e.g. when one takes pleasure in human praise or the like. The other pleasure is bodily or natural, and is realized in bodily touch, and this can also be called carnal pleasure.

Accordingly, those sins which consist in spiritual pleasure, are called spiritual sins; while those which consist in carnal pleasure, are called carnal sins, e.g. gluttony, which consists in the pleasures of the table; and lust, which consists in sexual pleasures. Hence the Apostle says (2 Cor. 7:1): "Let us cleanse ourselves from all defilement of the flesh and of the spirit."

Reply Obj. 1: As a gloss says on the same passage, these vices are called works of the flesh, not as though they consisted in carnal pleasure; but flesh here denotes man, who is said to live according to the flesh, when he lives according to himself, as Augustine says (De Civ. Dei xiv, 2, 3). The reason of this is because every failing in the human reason is due in some way to the carnal sense.

This suffices for the Reply to the Second Objection.

Reply Obj. 3: Even in the carnal sins there is a spiritual act, viz. the act of reason: but the end of these sins, from which they are named, is carnal pleasure.

Reply Obj. 4: As the gloss says, "in the sin of fornication the soul is the body's slave in a special sense, because at the moment of sinning it can think of nothing else": whereas the pleasure of gluttony, although carnal, does not so utterly absorb the reason. It may also be said that in this sin, an injury is done to the body also, for it is defiled inordinately: wherefore by this sin alone is man said specifically to sin against his body. While covetousness, which is reckoned among the carnal sins, stands here for adultery, which is the unjust appropriation of another's wife. Again, it may be said that the thing in which the covetous man takes pleasure is something bodily, and in this respect covetousness is numbered with the carnal sins: but the pleasure itself does not belong to the body, but to the spirit, wherefore Gregory says (Moral. xxxi, 17) that it is a spiritual sin.

THIRD ARTICLE [I-II, Q. 72, Art. 3]

Whether Sins Differ Specifically in Reference to Their Causes?

Objection 1: It would seem that sins differ specifically in reference to their causes. For a thing takes its species from that whence it derives its being. Now sins derive their being from their causes. Therefore they take their species from them also. Therefore they differ specifically in reference to their causes.

Obj. 2: Further, of all the causes the material cause seems to have least reference to the species. Now the object in a sin is like its material cause. Since, therefore, sins differ specifically according to their objects, it seems that much more do they differ in reference to their other causes.

Obj. 3: Further, Augustine, commenting on Ps. 79:17, "Things set on fire and dug down," says that "every sin is due either to fear inducing false humility, or to love enkindling us to undue ardor." For it is written (1 John 2:16) that "all that is in the world, is the concupiscence of the flesh, or [Vulg.: 'and'] the concupiscence of the eyes, or [Vulg.: 'and'] the pride of life." Now a thing is said to be in the world on account of sin, in as much as the world denotes lovers of the world, as Augustine observes (Tract. ii in Joan.). Gregory, too (Moral. xxxi, 17), distinguishes all sins according to the seven capital vices. Now all these divisions refer to the causes of sins. Therefore, seemingly, sins differ specifically according to the diversity of their causes.

On the contrary, If this were the case all sins would belong to one species, since they are due to one cause. For it is written (Ecclus. 10:15) that "pride is the beginning of all sin," and (1 Tim. 6:10) that "the desire of money is the root of all evils." Now it is evident that there are various species of sins. Therefore sins do not differ specifically according to their different causes.

I answer that, Since there are four kinds of causes, they are attributed to various things in various ways. Because the formal and the material cause regard properly the substance of a thing; and consequently substances differ in respect of their matter and form, both in species and in genus. The agent and the end regard directly movement and operation: wherefore movements and operations differ specifically in respect of these causes; in different ways, however, because the natural active principles are always determined to the same acts; so that the different species of natural acts are taken not only from the objects, which are the ends or terms of those acts, but also from their active principles: thus heating and cooling are specifically distinct with reference to hot and cold. On the other hand, the active principles in voluntary acts, such as the acts of sins, are not determined, of necessity, to one act, and consequently from one active or motive principle, diverse species of sins can proceed: thus from fear engendering false humility man may proceed to theft, or murder, or to neglect the flock committed to his care; and these same things may proceed from love enkindling to undue ardor. Hence it is evident that sins do not differ specifically according to their various active or motive causes, but only in respect of diversity in the final cause, which is the end and object of the will. For it has been shown above (Q. 1, A. 3; Q. 18, AA. 4, 6) that human acts take their species from the end.

Reply Obj. 1: The active principles in voluntary acts, not being determined to one act, do not suffice for the production of human acts, unless the will be determined to one by the intention of the end, as the Philosopher proves (Metaph. ix, text. 15, 16), and consequently sin derives both its being and its species from the end.

Reply Obj. 2: Objects, in relation to external acts, have the character of matter "about which"; but, in relation to the interior act of the will, they have the character of end; and it is owing to this that they give the act its species. Nevertheless, even considered as the matter "about which," they have the character of term, from which movement takes its species (Phys. v, text. 4; Ethic. x, 4); yet even terms of movement specify movements, in so far as term has the character of end.

Reply Obj. 3: These distinctions of sins are given, not as distinct species of sins, but to show their various causes.

FOURTH ARTICLE [I-II, Q. 72, Art. 4]

Whether Sin Is Fittingly Divided into Sin Against God, Against Oneself, and Against One's Neighbor?

Objection 1: It would seem that sin is unfittingly divided into sin against God, against one's neighbor, and against oneself. For that which is common to all sins should not be reckoned as a part in the division of sin. But it is common to all sins to be against God: for it is stated in the definition of sin that it is "against God's law," as stated above (Q. 66, A. 6). Therefore sin against God should not be reckoned a part of the division of sin.

Obj. 2: Further, every division should consist of things in opposition to one another. But these three kinds of sin are not opposed to one another: for whoever sins against his neighbor, sins against himself and against God. Therefore sin is not fittingly divided into these three.

Obj. 3: Further, specification is not taken from things external. But God and our neighbor are external to us. Therefore sins are not distinguished specifically with regard to them: and consequently sin is unfittingly divided according to these three.

On the contrary, Isidore (De Summo Bono), in giving the division of sins, says that "man is said to sin against himself, against God, and against his neighbor."

I answer that, As stated above (Q. 71, AA. 1, 6), sin is an inordinate act. Now there should be a threefold order in man: one in relation to the rule of reason, in so far as all our actions and passions should be commensurate with the rule of reason: another order is in relation to the rule of the Divine Law, whereby man should be directed in all things: and if man were by nature a solitary animal, this twofold order would suffice. But since man is naturally a civic and social animal, as is proved in Polit. i, 2, hence a third order is necessary, whereby man is directed in relation to other men among whom he has to dwell. Of these orders the second contains the first and surpasses it. For whatever things are comprised under the order of reason, are comprised under the order of God Himself. Yet some things are comprised under the order of God, which surpass the human reason, such as matters of faith, and things due to God alone. Hence he that sins in such matters, for instance, by heresy, sacrilege, or blasphemy, is said to sin against God. In like manner, the first order includes the third and surpasses it, because in all things wherein we are directed in reference to our neighbor, we need to be directed according to the order of reason. Yet in some things we are directed according to reason, in relation to ourselves only, and not in reference to our neighbor; and when man sins in these matters, he is said to sin against himself, as is seen in the glutton, the lustful, and the prodigal. But when man sins in matters concerning his neighbor, he is said to sin against his neighbor, as appears in the thief and murderer. Now the things whereby man is directed to God, his neighbor, and himself are diverse. Wherefore this distinction of sins is in respect of their objects, according to which the species of sins are diversified: and consequently this distinction of sins is properly one of different species of sins: because the virtues also, to which sins are opposed, differ specifically in respect of these three. For it is evident from what has been said (Q. 62, AA. 1, 2, 3) that by the theological virtues man is directed to God; by temperance and fortitude, to himself; and by justice to his neighbor.

Reply Obj. 1: To sin against God is common to all sins, in so far as the order to God includes every human order; but in so far as order to God surpasses the other two orders, sin against God is a special kind of sin.

Reply Obj. 2: When several things, of which one includes another, are distinct from one another, this distinction is understood to refer, not to the part contained in another, but to that in which one goes beyond another. This may be seen in the division of numbers and figures: for a triangle is distinguished from a four-sided figure not in respect of its being contained thereby, but in respect of that in which it is surpassed thereby: and the same applies to the numbers three and four.

Reply Obj. 3: Although God and our neighbor are external to the sinner himself, they are not external to the act of sin, but are related to it as to its object.

FIFTH ARTICLE [I-II, Q. 72, Art. 5]

Whether the Division of Sins According to Their Debt of Punishment Diversifies Their Species?

Objection 1: It would seem that the division of sins according to their debt of punishment diversifies their species; for instance, when sin is divided into "mortal" and "venial." For things which are infinitely apart, cannot belong to the same species, nor even to the same genus. But venial and mortal sin are infinitely apart, since temporal punishment is due to venial sin, and eternal punishment to mortal sin; and the measure of the punishment corresponds to the gravity of the fault, according to Deut. 25:2: "According to the measure of the sin shall the measure be also of the stripes be." Therefore venial and mortal sins are not of the same genus, nor can they be said to belong to the same species.

Obj. 2: Further, some sins are mortal in virtue of their species [*Ex genere, genus in this case denoting the species], as murder and adultery; and some are venial in virtue of their species, as in an idle word, and excessive laughter. Therefore venial and mortal sins differ specifically.

Obj. 3: Further, just as a virtuous act stands in relation to its reward, so does sin stand in relation to punishment. But the reward is the end of the virtuous act. Therefore punishment is the end of sin. Now sins differ specifically in relation to their ends, as stated above (A. 1, ad 1). Therefore they are also specifically distinct according to the debt of punishment.

On the contrary, Those things that constitute a species are prior to the species, e.g. specific differences. But punishment follows sin as the effect thereof. Therefore sins do not differ specifically according to the debt of punishment.

I answer that, In things that differ specifically we find a twofold difference: the first causes the diversity of species, and is not to be found save in different species, e.g. "rational" and "irrational," "animate," and "inanimate": the other difference is consequent to specific diversity; and though, in some cases, it may [follow from the diversity of species], yet, in others, it may be found within the same species; thus "white" and "black" are consequent to the specific diversity of crow and swan, and yet this difference is found within the one species of man.

We must therefore say that the difference between venial and mortal sin, or any other difference is respect of the debt of punishment, cannot be a difference constituting specific diversity. For what is accidental never constitutes a species; and what is outside the agent's intention is accidental (Phys. ii, text. 50). Now it is evident that punishment is outside the intention of the sinner, wherefore it is accidentally referred to sin on the part of the sinner. Nevertheless it is referred to sin by an extrinsic principle, viz. the justice of the judge, who imposes various punishments according to the various manners of sin. Therefore the difference derived from the debt of punishment, may be consequent to the specific diversity of sins, but cannot constitute it.

Now the difference between venial and mortal sin is consequent to the diversity of that inordinateness which constitutes the notion of sin. For inordinateness is twofold, one that destroys the principle of order, and another which, without destroying the principle of order, implies inordinateness in the things which follow the principle: thus, in an animal's body, the frame may be so out of order that the vital principle is destroyed; this is the inordinateness of death; while, on the other hand, saving the vital principle, there may be disorder in the bodily humors; and then there is sickness. Now the principle of the entire moral order is the last end, which stands in the same relation to matters of action, as the indemonstrable principle does to matters of speculation (Ethic. vii, 8). Therefore when the soul is so disordered by sin as to turn away from its last end, viz. God, to Whom it is united by charity, there is mortal sin; but when it is disordered without turning away from God, there is venial sin. For even as in the body, the disorder of death which results from the destruction of the principle of life, is irreparable according to nature, while the disorder of sickness can be repaired by reason of the vital principle being preserved, so it is in matters concerning the soul. Because, in speculative matters, it is impossible to convince one who errs in the principles, whereas one who errs, but retains the principles, can be brought back to the truth by means of the principles. Likewise in practical matters, he who, by sinning, turns away from his last end, if we consider the nature of his sin, falls irreparably, and therefore is said to sin mortally and to deserve eternal punishment: whereas when a man sins without turning away from God, by the very nature of his sin, his disorder can be repaired, because the principle of the order is not destroyed; wherefore he is said to sin venially, because, to wit, he does not sin so as to deserve to be punished eternally.

Reply Obj. 1: Mortal and venial sins are infinitely apart as regards what they turn away from, not as regards what they turn to, viz. the object which specifies them. Hence nothing hinders the same species from including mortal and venial sins; for instance, in the species "adultery" the first movement is a venial sin; while an idle word, which is, generally speaking, venial, may even be a mortal sin.

Reply Obj. 2: From the fact that one sin is mortal by reason of its species, and another venial by reason of its species, it follows that this difference is consequent to the specific difference of sins, not that it is the cause thereof. And this difference may be found even in things of the same species, as stated above.

Reply Obj. 3: The reward is intended by him that merits or acts virtu[ous]ly; whereas the punishment is not intended by the sinner, but, on the contrary, is against his will. Hence the comparison fails.

SIXTH ARTICLE [I-II, Q. 72, Art. 6]

Whether Sins of Commission and Omission Differ Specifically?

Objection 1: It would seem that sins of commission and omission differ specifically. For "offense" and "sin" are condivided with one another (Eph. 2:1), where it is written: "When you were dead in your offenses and sins," which words a gloss explains, saying: "'Offenses,' by omitting to do what was commanded, and 'sins,' by doing what was forbidden." Whence it is evident that "offenses" here denotes sins of omission; while "sin" denotes sins of commission. Therefore they differ specifically, since they are contrasted with one another as different species.

Obj. 2: Further, it is essential to sin to be against God's law, for this is part of its definition, as is clear from what has been said (Q. 71, A. 6). Now in God's law, the affirmative precepts, against which is the sin of omission, are different from the negative precepts, against which is the sin of omission. Therefore sins of omission and commission differ specifically.

Obj. 3: Further, omission and commission differ as affirmation and negation. Now affirmation and negation cannot be in the same species, since negation has no species; for "there is neither species nor difference of non-being," as the Philosopher states (Phys. iv, text. 67). Therefore omission and commission cannot belong to the same species.

On the contrary, Omission and commission are found in the same species of sin. For the covetous man both takes what belongs to others, which is a sin of commission; and gives not of his own to whom he should give, which is a sin of omission. Therefore omission and commission do not differ specifically.

I answer that, There is a twofold difference in sins; a material difference and a formal difference: the material difference is to be observed in the natural species of the sinful act; while the formal difference is gathered from their relation to one proper end, which is also their proper object. Hence we find certain acts differing from one another in the material specific difference, which are nevertheless formally in the same species of sin, because they are directed to the one same end: thus strangling, stoning, and stabbing come under the one species of murder, although the actions themselves differ specifically according to the natural species. Accordingly, if we refer to the material species in sins of omission and commission, they differ specifically, using species in a broad sense, in so far as negation and privation may have a species. But if we refer to the formal species of sins of omission and commission, they do not differ specifically, because they are directed to the same end, and proceed from the same motive. For the covetous man, in order to hoard money, both robs, and omits to give what he ought, and in like manner, the glutton, to satiate his appetite, both eats too much and omits the prescribed fasts. The same applies to other sins: for in things, negation is always founded on affirmation, which, in a manner, is its cause. Hence in the physical order it comes under the same head, that fire gives forth heat, and that it does not give forth cold.

Reply Obj. 1: This division in respect of commission and omission, is not according to different formal species, but only according to material species, as stated.

Reply Obj. 2: In God's law, the necessity for various affirmative and negative precepts, was that men might be gradually led to virtue, first by abstaining from evil, being induced to this by the negative precepts, and afterwards by doing good, to which we are induced by the affirmative precepts. Wherefore the affirmative and negative precepts do not belong to different virtues, but to different degrees of virtue; and consequently they are not, of necessity, opposed to sins of different species. Moreover sin is not specified by that from which it turns away, because in this respect it is a negation or privation, but by that to which it turns, in so far as sin is an act. Consequently sins do not differ specifically according to the various precepts of the Law.

Reply Obj. 3: This objection considers the material diversity of sins. It must be observed, however, that although, properly speaking, negation is not in a species, yet it is allotted to a species by reduction to the affirmation on which it is based.

SEVENTH ARTICLE [I-II, Q. 72, Art. 7]

Whether Sins Are Fittingly Divided into Sins of Thought, Word, and Deed?

Objection 1: It would seem that sins are unfittingly divided into sins of thought, word, and deed. For Augustine (De Trin. xii, 12) describes three stages of sin, of which the first is "when the carnal sense offers a bait," which is the sin of thought; the second stage is reached "when one is satisfied with the mere pleasure of thought"; and the third stage, "when consent is given to the deed." Now these three belong to the sin of thought. Therefore it is unfitting to reckon sin of thought as one kind of sin.

Obj. 2: Further, Gregory (Moral. iv, 25) reckons four degrees of sin; the first of which is "a fault hidden in the heart"; the second, "when it is done openly"; the third, "when it is formed into a habit"; and the fourth, "when man goes so far as to presume on God's mercy or to give himself up to despair": where no distinction is made between sins of deed and sins of word, and two other degrees of sin are added. Therefore the first division was unfitting.

Obj. 3: Further, there can be no sin of word or deed unless there precede sin of thought. Therefore these sins do not differ specifically. Therefore they should not be condivided with one another.

On the contrary, Jerome in commenting on Ezech. 43:23, says: "The human race is subject to three kinds of sin, for when we sin, it is either by thought, or word, or deed."

I answer that, Things differ specifically in two ways: first, when each has the complete species; thus a horse and an ox differ specifically: secondly, when the diversity of species is derived from diversity of degree in generation or movement: thus the building is the complete generation of a house, while the laying of the foundations, and the setting up of the walls are incomplete species, as the Philosopher declares (Ethic. x, 4); and the same can apply to the generation of animals. Accordingly sins are divided into these three, viz. sins of thought, word, and deed, not as into various complete species: for the consummation of sin is in the deed, wherefore sins of deed have the complete species; but the first beginning of sin is its foundation, as it were, in the sin of thought; the second degree is the sin of word, in so far as man is ready to break out into a declaration of his thought; while the third degree consists in the consummation of the deed. Consequently these three differ in respect of the various degrees of sin. Nevertheless it is evident that these three belong to the one complete species of sin, since they proceed from the same motive. For the angry man, through desire of vengeance, is at first disturbed in thought, then he breaks out into words of abuse, and lastly he goes on to wrongful deeds; and the same applies to lust and to any other sin.

Reply Obj. 1: All sins of thought have the common note of secrecy, in respect of which they form one degree, which is, however, divided into three stages, viz. of cogitation, pleasure, and consent.

Reply Obj. 2: Sins of words and deed are both done openly, and for this reason Gregory (Moral. iv, 25) reckons them under one head: whereas Jerome (in commenting on Ezech. 43:23) distinguishes between them, because in sins of word there is nothing but manifestation which is intended principally; while in sins of deed, it is the consummation of the inward thought which is principally intended, and the outward manifestation is by way of sequel. Habit and despair are stages following the complete species of sin, even as boyhood and youth follow the complete generation of a man.

Reply Obj. 3: Sin of thought and sin of word are not distinct from the sin of deed when they are united together with it, but when each is found by itself: even as one part of a movement is not distinct from the whole movement, when the movement is continuous, but only when there is a break in the movement.

EIGHTH ARTICLE [I-II, Q. 72, Art. 8]

Whether Excess and Deficiency Diversify the Species of Sins?

Objection 1: It would seem that excess and deficiency do not diversify the species of sins. For excess and deficiency differ in respect of more and less. Now "more" and "less" do not diversify a species. Therefore excess and deficiency do not diversify the species of sins.

Obj. 2: Further, just as sin, in matters of action, is due to straying from the rectitude of reason, so falsehood, in speculative matters, is due to straying from the truth of the reality. Now the species of falsehood is not diversified by saying more or less than the reality. Therefore neither is the species of sin diversified by straying more or less from the rectitude of reason.

Obj. 3: Further, "one species cannot be made out of two," as Porphyry declares [*Isagog.; cf. Arist. Metaph. i]. Now excess and deficiency are united in one sin; for some are at once illiberal and wasteful—illiberality being a sin of deficiency, and prodigality, by excess. Therefore excess and deficiency do not diversify the species of sins.

On the contrary, Contraries differ specifically, for "contrariety is a difference of form," as stated in Metaph. x, text. 13, 14. Now vices that differ according to excess and deficiency are contrary to one another, as illiberality to wastefulness. Therefore they differ specifically.

I answer that, While there are two things in sin, viz. the act itself and its inordinateness, in so far as sin is a departure from the order of reason and the Divine law, the species of sin is gathered, not from its inordinateness, which is outside the sinner's intention, as stated above (A. 1), but one the contrary, from the act itself as terminating in the object to which the sinner's intention is directed. Consequently wherever we find a different motive inclining the intention to sin, there will be a different species of sin. Now it is evident that the motive for sinning, in sins by excess, is not the same as the motive for sinning, in sins of deficiency; in fact, they are contrary to one another, just as the motive in the sin of intemperance is love for bodily pleasures, while the motive in the sin of insensibility is hatred of the same. Therefore these sins not only differ specifically, but are contrary to one another.

Reply Obj. 1: Although more and less do not cause diversity of species, yet they are sometimes consequent to specific difference, in so far as they are the result of diversity of form; thus we may say that fire is lighter than air. Hence the Philosopher says (Ethic. viii, 1) that "those who held that there are no different species of friendship, by reason of its admitting of degree, were led by insufficient proof." In this way to exceed reason or to fall short thereof belongs to sins specifically different, in so far as they result from different motives.

Reply Obj. 2: It is not the sinner's intention to depart from reason; and so sins of excess and deficiency do not become of one kind through departing from the one rectitude of reason. On the other hand, sometimes he who utters a falsehood, intends to hide the truth, wherefore in this respect, it matters not whether he tells more or less. If, however, departure from the truth be not outside the intention, it is evident that then one is moved by different causes to tell more or less; and in this respect there are different kinds of falsehood, as is evident of the boaster, who exceeds in telling untruths for the sake of fame, and the cheat, who tells less than the truth, in order to escape from paying his debts. This also explains how some false opinions are contrary to one another.

Reply Obj. 3: One may be prodigal and illiberal with regard to different objects: for instance one may be illiberal [*Cf. II-II, Q. 119, A. 1, ad 1] in taking what one ought not: and nothing hinders contraries from being in the same subject, in different respects.

NINTH ARTICLE [I-II, Q. 72, Art. 9]

Whether Sins Differ Specifically in Respect of Different Circumstances?

Objection 1: It would seem that vices and sins differ in respect of different circumstances. For, as Dionysius says (Div. Nom. iv), "evil results from each single defect." Now individual defects are corruptions of individual circumstances. Therefore from the corruption of each circumstance there results a corresponding species of sin.

Obj. 2: Further, sins are human acts. But human acts sometimes take their species from circumstances, as stated above (Q. 18, A. 10). Therefore sins differ specifically according as different circumstances are corrupted.

Obj. 3: Further, diverse species are assigned to gluttony, according to the words contained in the following verse:

"Hastily, sumptuously, too much, greedily, daintily."

Now these pertain to various circumstances, for "hastily" means sooner than is right; "too much," more than is right, and so on with the others. Therefore the species of sin is diversified according to the various circumstances.

On the contrary, The Philosopher says (Ethic. iii, 7; iv, 1) that "every vice sins by doing more than one ought, and when one ought not"; and in like manner as to the other circumstances. Therefore the species of sins are not diversified in this respect.

I answer that, As stated above (A. 8), wherever there is a special motive for sinning, there is a different species of sin, because the motive for sinning is the end and object of sin. Now it happens sometimes that although different circumstances are corrupted, there is but one motive: thus the illiberal man, for the same motive, takes when he ought not, where he ought not, and more than he ought, and so on with the circumstances, since he does this through an inordinate desire of hoarding money: and in such cases the corruption of different circumstances does not diversify the species of sins, but belongs to one and the same species.

Sometimes, however, the corruption of different circumstances arises from different motives: for instance that a man eat hastily, may be due to the fact that he cannot brook the delay in taking food, on account of a rapid exhaustion of the digestive humors; and that he desire too much food, may be due to a naturally strong digestion; that he desire choice meats, is due to his desire for pleasure in taking food. Hence in such matters, the corruption of different circumstances entails different species of sins.

Reply Obj. 1: Evil, as such, is a privation, and so it has different species in respect of the thing which the subject is deprived, even as other privations. But sin does not take its species from the privation or aversion, as stated above (A. 1), but from turning to the object of the act.

Reply Obj. 2: A circumstance never transfers an act from one species to another, save when there is another motive.

Reply Obj. 3: In the various species of gluttony there are various motives, as stated.

QUESTION 73

OF THE COMPARISON OF ONE SIN WITH ANOTHER (In Ten Articles)

We must now consider the comparison of one sin with another: under which head there are ten points of inquiry:

(1) Whether all sins and vices are connected with one another?

(2) Whether all are equal?

(3) Whether the gravity of sin depends on its object?

(4) Whether it depends on the excellence of the virtue to which it is opposed?

(5) Whether carnal sins are more grievous than spiritual sins?

(6) Whether the gravity of sins depends on their causes?

(7) Whether it depends on their circumstances?

(8) Whether it depends on how much harm ensues?

(9) Whether on the position of the person sinned against?

(10) Whether sin is aggravated by reason of the excellence of the person sinning?

FIRST ARTICLE [I-II, Q. 73, Art. 1]

Whether All Sins Are Connected with One Another?

Objection 1: It would seem that all sins are connected. For it is written (James 2:10): "Whosoever shall keep the whole Law, but offend in one point, is become guilty of all." Now to be guilty of transgressing all the precepts of Law, is the same as to commit all sins, because, as Ambrose says (De Parad. viii), "sin is a transgression of the Divine law, and disobedience of the heavenly commandments." Therefore whoever commits one sin is guilty of all.

Obj. 2: Further, each sin banishes its opposite virtue. Now whoever lacks one virtue lacks them all, as was shown above (Q. 65, A. 1). Therefore whoever commits one sin, is deprived of all the virtues. Therefore whoever commits one sin, is guilty of all sins.

Obj. 3: Further, all virtues are connected, because they have a principle in common, as stated above (Q. 65, AA. 1, 2). Now as the virtues have a common principle, so have sins, because, as the love of God, which builds the city of God, is the beginning and root of all the virtues, so self-love, which builds the city of Babylon, is the root of all sins, as Augustine declares (De Civ. Dei xiv, 28). Therefore all vices and sins are also connected so that whoever has one, has them all.

On the contrary, Some vices are contrary to one another, as the Philosopher states (Ethic. ii, 8). But contraries cannot be together in the same subject. Therefore it is impossible for all sins and vices to be connected with one another.

I answer that, The intention of the man who acts according to virtue in pursuance of his reason, is different from the intention of the sinner in straying from the path of reason. For the intention of every man acting according to virtue is to follow the rule of reason, wherefore the intention of all the virtues is directed to the same end, so that all the virtues are connected together in the right reason of things to be done, viz. prudence, as stated above (Q. 65, A. 1). But the intention of the sinner is not directed to the point of straying from the path of reason; rather is it directed to tend to some appetible good whence it derives its species. Now these goods, to which the sinner's intention is directed when departing from reason, are of various kinds, having no mutual connection; in fact they are sometimes contrary to one another. Since, therefore, vices and sins take their species from that to which they turn, it is evident that, in respect of that which completes a sin's species, sins are not connected with one another. For sin does not consist in passing from the many to the one, as is the case with virtues, which are connected, but rather in forsaking the one for the many.

Reply Obj. 1: James is speaking of sin, not as regards the thing to which it turns and which causes the distinction of sins, as stated above (Q. 72, A. 1), but as regards that from which sin turns away, in as much as man, by sinning, departs from a commandment of the law. Now all the commandments of the law are from one and the same, as he also says in the same passage, so that the same God is despised in every sin; and in this sense he says that whoever "offends in one point, is become guilty of all," for as much as, by committing one sin, he incurs the debt of punishment through his contempt of God, which is the origin of all sins.

Reply Obj. 2: As stated above (Q. 71, A. 4), the opposite virtue is not banished by every act of sin; because venial sin does not destroy virtue; while mortal sin destroys infused virtue, by turning man away from God. Yet one act, even of mortal sin, does not destroy the habit of acquired virtue; though if such acts be repeated so as to engender a contrary habit, the habit of acquired virtue is destroyed, the destruction of which entails the loss of prudence, since when man acts against any virtue whatever, he acts against prudence, without which no moral virtue is possible, as stated above (Q. 58, A. 4; Q. 65, A. 1). Consequently all the moral virtues are destroyed as to the perfect and formal being of virtue, which they have in so far as they partake of prudence, yet there remain the inclinations to virtuous acts, which inclinations, however, are not virtues. Nevertheless it does not follow that for this reason man contracts all vices of sins—first, because several vices are opposed to one virtue, so that a virtue can be destroyed by one of them, without the others being present; secondly, because sin is directly opposed to virtue, as regards the virtue's inclination to act, as stated above (Q. 71, A. 1). Wherefore, as long as any virtuous inclinations remain, it cannot be said that man has the opposite vices or sins.

Reply Obj. 3: The love of God is unitive, in as much as it draws man's affections from the many to the one; so that the virtues, which flow from the love of God, are connected together. But self-love disunites man's affections among different things, in so far as man loves himself, by desiring for himself temporal goods, which are various and of many kinds: hence vices and sins, which arise from self-love, are not connected together.

SECOND ARTICLE [I-II, Q. 73, Art. 2]

Whether All Sins Are Equal?

Objection 1: It would seem that all sins are equal. Because sin is to do what is unlawful. Now to do what is unlawful is reproved in one and the same way in all things. Therefore sin is reproved in one and the same way. Therefore one sin is not graver than another.

Obj. 2: Further, every sin is a transgression of the rule of reason, which is to human acts what a linear rule is in corporeal things. Therefore to sin is the same as to pass over a line. But passing over a line occurs equally and in the same way, even if one go a long way from it or stay near it, since privations do not admit of more or less. Therefore all sins are equal.

Obj. 3: Further, sins are opposed to virtues. But all virtues are equal, as Cicero states (Paradox. iii). Therefore all sins are equal.

On the contrary, Our Lord said to Pilate (John 19:11): "He that hath delivered me to thee, hath the greater sin," and yet it is evident that Pilate was guilty of some sin. Therefore one sin is greater than another.

I answer that, The opinion of the Stoics, which Cicero adopts in the book on Paradoxes (Paradox. iii), was that all sins are equal: from which opinion arose the error of certain heretics, who not only hold all sins to be equal, but also maintain that all the pains of hell are equal. So far as can be gathered from the words of Cicero the Stoics arrived at their conclusion through looking at sin on the side of the privation only, in so far, to wit, as it is a departure from reason; wherefore considering simply that no privation admits of more or less, they held that all sins are equal. Yet, if we consider the matter carefully, we shall see that there are two kinds of privation. For there is a simple and pure privation, which consists, so to speak, in being corrupted; thus death is privation of life, and darkness is privation of light. Such like privations do not admit of more or less, because nothing remains of the opposite habit; hence a man is not less dead on the first day after his death, or on the third or fourth days, than after a year, when his corpse is already dissolved; and, in like manner, a house is no darker if the light be covered with several shades, than if it were covered by a single shade shutting out all the light. There is, however, another privation which is not simple, but retains something of the opposite habit; it consists in becoming corrupted rather than in being corrupted, like sickness which is a privation of the due commensuration of the humors, yet so that something remains of that commensuration, else the animal would cease to live: and the same applies to deformity and the like. Such privations admit of more or less on the part of what remains or the contrary habit. For it matters much in sickness or deformity, whether one departs more or less from the due commensuration of humors or members. The same applies to vices and sins: because in them the privation of the due commensuration of reason is such as not to destroy the order of reason altogether; else evil, if total, destroys itself, as stated in Ethic. iv, 5. For the substance of the act, or the affection of the agent could not remain, unless something remained of the order of reason. Therefore it matters much to the gravity of a sin whether one departs more or less from the rectitude of reason: and accordingly we must say that sins are not all equal.

Reply Obj. 1: To commit sin is unlawful on account of some inordinateness therein: wherefore those which contain a greater inordinateness are more unlawful, and consequently graver sins.

Reply Obj. 2: This argument looks upon sin as though it were a pure privation.

Reply Obj. 3: Virtues are proportionately equal in one and the same subject: yet one virtue surpasses another in excellence according to its species; and again, one man is more virtuous than another, in the same species of virtue, as stated above (Q. 66, AA. 1, 2). Moreover, even if virtues were equal, it would not follow that vices are equal, since virtues are connected, and vices or sins are not.

THIRD ARTICLE [I-II, Q. 73, Art. 3]

Whether the Gravity of Sins Varies According to Their Objects?

Objection 1: It would seem that the gravity of sins does not vary according to their objects. Because the gravity of a sin pertains to its mode or quality: whereas the object is the matter of the sin. Therefore the gravity of sins does not vary according to their various objects.

Obj. 2: Further, the gravity of a sin is the intensity of its malice. Now sin does not derive its malice from its proper object to which it turns, and which is some appetible good, but rather from that which it turns away from. Therefore the gravity of sins does not vary according to their various objects.

Obj. 3: Further, sins that have different objects are of different kinds. But things of different kinds cannot be compared with one another, as is proved in Phys. vii, text. 30, seqq. Therefore one sin is not graver than another by reason of the difference of objects.

On the contrary, Sins take their species from their objects, as was shown above (Q. 72, A. 1). But some sins are graver than others in respect of their species, as murder is graver than theft. Therefore the gravity of sins varies according to their objects.

I answer that, As is clear from what has been said (Q. 71, A. 5), the gravity of sins varies in the same way as one sickness is graver than another: for just as the good of health consists in a certain commensuration of the humors, in keeping with an animal's nature, so the good of virtue consists in a certain commensuration of the human act in accord with the rule of reason. Now it is evident that the higher the principle the disorder of which causes the disorder in the humors, the graver is the sickness: thus a sickness which comes on the human body from the heart, which is the principle of life, or from some neighboring part, is more dangerous. Wherefore a sin must needs be so much the graver, as the disorder occurs in a principle which is higher in the order of reason. Now in matters of action the reason directs all things in view of the end: wherefore the higher the end which attaches to sins in human acts, the graver the sin. Now the object of an act is its end, as stated above (Q. 72, A. 3, ad 2); and consequently the difference of gravity in sins depends on their objects. Thus it is clear that external things are directed to man as their end, while man is further directed to God as his end. Wherefore a sin which is about the very substance of man, e.g. murder, is graver than a sin which is about external things, e.g. theft; and graver still is a sin committed directly against God, e.g. unbelief, blasphemy, and the like: and in each of these grades of sin, one sin will be graver than another according as it is about a higher or lower principle. And forasmuch as sins take their species from their objects, the difference of gravity which is derived from the objects is first and foremost, as resulting from the species.

Reply Obj. 1: Although the object is the matter about which an act is concerned, yet it has the character of an end, in so far as the intention of the agent is fixed on it, as stated above (Q. 72, A. 3, ad 2). Now the form of a moral act depends on the end, as was shown above (Q. 72, A. 6; Q. 18, A. 6).

Reply Obj. 2: From the very fact that man turns unduly to some mutable good, it follows that he turns away from the immutable Good, which aversion completes the nature of evil. Hence the various degrees of malice in sins must needs follow the diversity of those things to which man turns.

Reply Obj. 3: All the objects of human acts are related to one another, wherefore all human acts are somewhat of one kind, in so far as they are directed to the last end. Therefore nothing prevents all sins from being compared with one another.

FOURTH ARTICLE [I-II, Q. 73, Art. 4]

Whether the Gravity of Sins Depends on the Excellence of the Virtues to Which They Are Opposed?

Objection 1: It would seem that the gravity of sins does not vary according to the excellence of the virtues to which they are opposed, so that, to wit, the graver sin is opposed to the greater virtue. For, according to Prov. 15:5, "In abundant justice there is the greatest strength." Now, as Our Lord says (Matt. 5:20, seqq.) abundant justice restrains anger, which is a less grievous sin than murder, which less abundant justice restrains. Therefore the least grievous sin is opposed to the greatest virtue.

Obj. 2: Further, it is stated in Ethic. ii, 3 that "virtue is about the difficult and the good": whence it seems to follow that the greater virtue is about what is more difficult. But it is a less grievous sin to fail in what is more difficult, than in what is less difficult. Therefore the less grievous sin is opposed to the greater virtue.

Obj. 3: Further, charity is a greater virtue than faith or hope (1 Cor. 13:13). Now hatred which is opposed to charity is a less grievous sin than unbelief or despair which are opposed to faith and hope. Therefore the less grievous sin is opposed to the greater virtue.

On the contrary, The Philosopher says (Ethic. 8:10) that the "worst is opposed to the best." Now in morals the best is the greatest virtue; and the worst is the most grievous sin. Therefore the most grievous sin is opposed to the greatest virtue.

I answer that, A sin is opposed to a virtue in two ways: first, principally and directly; that sin, to wit, which is about the same object: because contraries are about the same thing. In this way, the more grievous sin must needs be opposed to the greater virtue: because, just as the degrees of gravity in a sin depend on the object, so also does the greatness of a virtue, since both sin and virtue take their species from the object, as shown above (Q. 60, A. 5; Q. 72, A. 1). Wherefore the greatest sin must needs be directly opposed to the greatest virtue, as being furthest removed from it in the same genus. Secondly, the opposition of virtue to sin may be considered in respect of a certain extension of the virtue in checking sin. For the greater a virtue is, the further it removes man from the contrary sin, so that it withdraws man not only from that sin, but also from whatever leads to it. And thus it is evident that the greater a virtue is, the more it withdraws man also from less grievous sins: even as the more perfect health is, the more does it ward off even minor ailments. And in this way the less grievous sin is opposed to the greater virtue, on the part of the latter's effect.

Reply Obj. 1: This argument considers the opposition which consists in restraining from sin; for thus abundant justice checks even minor sins.

Reply Obj. 2: The greater virtue that is about a more difficult good is opposed directly to the sin which is about a more difficult evil. For in each case there is a certain superiority, in that the will is shown to be more intent on good or evil, through not being overcome by the difficulty.

Reply Obj. 3: Charity is not any kind of love, but the love of God: hence not any kind of hatred is opposed to it directly, but the hatred of God, which is the most grievous of all sins.

FIFTH ARTICLE [I-II, Q. 73, Art. 5]

Whether Carnal Sins Are of Less Guilt Than Spiritual Sins?

Objection 1: It would seem that carnal sins are not of less guilt than spiritual sins. Because adultery is a more grievous sin than theft: for it is written (Prov. 6:30, 32): "The fault is not so great when a man has stolen . . . but he that is an adulterer, for the folly of his heart shall destroy his own soul." Now theft belongs to covetousness, which is a spiritual sin; while adultery pertains to lust, which is a carnal sin. Therefore carnal sins are of greater guilt than spiritual sins.

Obj. 2: Further, Augustine says in his commentary on Leviticus [*The quotation is from De Civ. Dei ii, 4 and iv, 31.] that "the devil rejoices chiefly in lust and idolatry." But he rejoices more in the greater sin. Therefore, since lust is a carnal sin, it seems that the carnal sins are of most guilt.

Obj. 3: Further, the Philosopher proves (Ethic. vii, 6) that "it is more shameful to be incontinent in lust than in anger." But anger is a spiritual sin, according to Gregory (Moral. xxxi, 17); while lust pertains to carnal sins. Therefore carnal sin is more grievous than spiritual sin.

On the contrary, Gregory says (Moral. xxxiii, 11) that carnal sins are of less guilt, but of more shame than spiritual sins.

I answer that, Spiritual sins are of greater guilt than carnal sins: yet this does not mean that each spiritual sin is of greater guilt than each carnal sin; but that, considering the sole difference between spiritual and carnal, spiritual sins are more grievous than carnal sins, other things being equal. Three reasons may be assigned for this. The first is on the part of the subject: because spiritual sins belong to the spirit, to which it is proper to turn to God, and to turn away from Him; whereas carnal sins are consummated in the carnal pleasure of the appetite, to which it chiefly belongs to turn to goods of the body; so that carnal sin, as such, denotes more a turning to something, and for that reason, implies a closer cleaving; whereas spiritual sin denotes more a turning from something, whence the notion of guilt arises; and for this reason it involves greater guilt. A second reason may be taken on the part of the person against whom sin is committed: because carnal sin, as such, is against the sinner's own body, which he ought to love less, in the order of charity, than God and his neighbor, against whom he commits spiritual sins, and consequently spiritual sins, as such, are of greater guilt. A third reason may be taken from the motive, since the stronger the impulse to sin, the less grievous the sin, as we shall state further on (A. 6). Now carnal sins have a stronger impulse, viz. our innate concupiscence of the flesh. Therefore spiritual sins, as such, are of greater guilt.

Reply Obj. 1: Adultery belongs not only to the sin of lust, but also to the sin of injustice, and in this respect may be brought under the head of covetousness, as a gloss observes on Eph. 5:5. "No fornicator, or unclean, or covetous person," etc.; so that adultery is so much more grievous than theft, as a man loves his wife more than his chattels.

Reply Obj. 2: The devil is said to rejoice chiefly in the sin of lust, because it is of the greatest adhesion, and man can with difficulty be withdrawn from it. "For the desire of pleasure is insatiable," as the Philosopher states (Ethic. iii, 12).

Reply Obj. 3: As the Philosopher himself says (Ethic. vii, 6), the reason why it is more shameful to be incontinent in lust than in anger, is that lust partakes less of reason; and in the same sense he says (Ethic. iii, 10) that "sins of intemperance are most worthy of reproach, because they are about those pleasures which are common to us and irrational animals": hence, by these sins man is, so to speak, brutalized; for which same reason Gregory says (Moral. xxxi, 17) that they are more shameful.

SIXTH ARTICLE [I-II, Q. 73, Art. 6]

Whether the Gravity of a Sin Depends on Its Cause?

Objection 1: It would seem that the gravity of a sin does not depend on its cause. Because the greater a sin's cause, the more forcibly it moves to sin, and so the more difficult is it to resist. But sin is lessened by the fact that it is difficult to resist; for it denotes weakness in the sinner, if he cannot easily resist sin; and a sin that is due to weakness is deemed less grievous. Therefore sin does not derive its gravity from its cause.

Obj. 2: Further, concupiscence is a general cause of sin; wherefore a gloss on Rom. 7:7, "For I had not known concupiscence," says: "The law is good, since by forbidding concupiscence, it forbids all evils." Now the greater the concupiscence by which man is overcome, the less grievous his sin. Therefore the gravity of a sin is diminished by the greatness of its cause.

Obj. 3: Further, as rectitude of the reason is the cause of a virtuous act, so defect in the reason seems to be the cause of sin. Now the greater the defect in the reason, the less grievous the sin: so much so that he who lacks the use of reason, is altogether excused from sin, and he who sins through ignorance, sins less grievously. Therefore the gravity of a sin is not increased by the greatness of its cause.

On the contrary, If the cause be increased, the effect is increased. Therefore the greater the cause of sin, the more grievous the sin.

I answer that, In the genus of sin, as in every other genus, two causes may be observed. The first is the direct and proper cause of sin, and is the will to sin: for it is compared to the sinful act, as a tree to its fruit, as a gloss observes on Matt. 7:18, "A good tree cannot bring forth evil fruit": and the greater this cause is, the more grievous will the sin be, since the greater the will to sin, the more grievously does man sin.

The other causes of sin are extrinsic and remote, as it were, being those whereby the will is inclined to sin. Among these causes we must make a distinction; for some of them induce the will to sin in accord with the very nature of the will: such is the end, which is the proper object of the will; and by a such like cause sin is made more grievous, because a man sins more grievously if his will is induced to sin by the intention of a more evil end. Other causes incline the will to sin, against the nature and order of the will, whose natural inclination is to be moved freely of itself in accord with the judgment of reason. Wherefore those causes which weaken the judgment of reason (e.g. ignorance), or which weaken the free movement of the will, (e.g. weakness, violence, fear, or the like), diminish the gravity of sin, even as they diminish its voluntariness; and so much so, that if the act be altogether involuntary, it is no longer sinful.

Reply Obj. 1: This argument considers the extrinsic moving cause, which diminishes voluntariness. The increase of such a cause diminishes the sin, as stated.

Reply Obj. 2: If concupiscence be understood to include the movement of the will, then, where there is greater concupiscence, there is a greater sin. But if by concupiscence we understand a passion, which is a movement of the concupiscible power, then a greater concupiscence, forestalling the judgment of reason and the movement of the will, diminishes the sin, because the man who sins, being stimulated by a greater concupiscence, falls through a more grievous temptation, wherefore he is less to be blamed. On the other hand, if concupiscence be taken in this sense follows the judgment of reason, and the movement of the will, then the greater concupiscence, the graver the sin: because sometimes the movement of concupiscence is redoubled by the will tending unrestrainedly to its object.

Reply Obj. 3: This argument considers the cause which renders the act involuntary, and such a cause diminishes the gravity of sin, as stated.

SEVENTH ARTICLE [I-II, Q. 73, Art. 7]

Whether a Circumstance Aggravates a Sin?

Objection 1: It would seem that a circumstance does not aggravate a sin. Because sin takes its gravity from its species. Now a circumstance does not specify a sin, for it is an accident thereof. Therefore the gravity of a sin is not taken from a circumstance.

Obj. 2: Further, a circumstance is either evil or not: if it is evil, it causes, of itself, a species of evil; and if it is not evil, it cannot make a thing worse. Therefore a circumstance nowise aggravates a sin.

Obj. 3: Further, the malice of a sin is derived from its turning away (from God). But circumstances affect sin on the part of the object to which it turns. Therefore they do not add to the sin's malice.

On the contrary, Ignorance of a circumstance diminishes sin: for he who sins through ignorance of a circumstance, deserves to be forgiven (Ethic. iii, 1). Now this would not be the case unless a circumstance aggravated a sin. Therefore a circumstance makes a sin more grievous.

I answer that, As the Philosopher says in speaking of habits of virtue (Ethic. ii, 1, 2), "it is natural for a thing to be increased by that which causes it." Now it is evident that a sin is caused by a defect in some circumstance: because the fact that a man departs from the order of reason is due to his not observing the due circumstances in his action. Wherefore it is evident that it is natural for a sin to be aggravated by reason of its circumstances. This happens in three ways. First, in so far as a circumstance draws a sin from one kind to another: thus fornication is the intercourse of a man with one who is not his wife: but if to this be added the circumstance that the latter is the wife of another, the sin is drawn to another kind of sin, viz. injustice, in so far as he usurps another's property; and in this respect adultery is a more grievous sin than fornication. Secondly, a circumstance aggravates a sin, not by drawing it into another genus, but only by multiplying the ratio of sin: thus if a wasteful man gives both when he ought not, and to whom he ought not to give, he commits the same kind of sin in more ways than if he were to merely to give to whom he ought not, and for that very reason his sin is more grievous; even as that sickness is the graver which affects more parts of the body. Hence Cicero says (Paradox. iii) that "in taking his father's life a man commits many sins; for he outrages one who begot him, who fed him, who educated him, to whom he owes his lands, his house, his position in the republic." Thirdly, a circumstance aggravates a sin by adding to the deformity which the sin derives from another circumstance: thus, taking another's property constitutes the sin of theft; but if to this be added the circumstance that much is taken of another's property, the sin will be more grievous; although in itself, to take more or less has not the character of a good or of an evil act.

Reply Obj. 1: Some circumstances do specify a moral act, as stated above (Q. 18, A. 10). Nevertheless a circumstance which does not give the species, may aggravate a sin; because, even as the goodness of a thing is weighed, not only in reference to its species, but also in reference to an accident, so the malice of an act is measured, not only according to the species of that act, but also according to a circumstance.

Reply Obj. 2: A circumstance may aggravate a sin either way. For if it is evil, it does not follow that it constitutes the sin's species; because it may multiply the ratio of evil within the same species, as stated above. And if it be not evil, it may aggravate a sin in relation to the malice of another circumstance.

Reply Obj. 3: Reason should direct the action not only as regards the object, but also as regards every circumstance. Therefore one may turn aside from the rule of reason through corruption of any single circumstance; for instance, by doing something when one ought not or where one ought not; and to depart thus from the rule of reason suffices to make the act evil. This turning aside from the rule of reason results from man's turning away from God, to Whom man ought to be united by right reason.

EIGHTH ARTICLE [I-II, Q. 73, Art. 8]

Whether Sin Is Aggravated by Reason of Its Causing More Harm?

Objection 1: It would seem that a sin is not aggravated by reason of its causing more harm. Because the harm done is an issue consequent to the sinful act. But the issue of an act does not add to its goodness or malice, as stated above (Q. 20, A. 5). Therefore a sin is not aggravated on account of its causing more harm.

Obj. 2: Further, harm is inflicted by sins against our neighbor. Because no one wishes to harm himself: and no one can harm God, according to Job 35:6, 8: "If thy iniquities be multiplied, what shalt thou do against Him? . . . Thy wickedness may hurt a man that is like thee." If, therefore, sins were aggravated through causing more harm, it would follow that sins against our neighbor are more grievous than sins against God or oneself.

Obj. 3: Further, greater harm is inflicted on a man by depriving him of the life of grace, than by taking away his natural life; because the life of grace is better than the life of nature, so far that man ought to despise his natural life lest he lose the life of grace. Now, speaking absolutely, a man who leads a woman to commit fornication deprives her of the life of grace by leading her into mortal sin. If therefore a sin were more grievous on account of its causing a greater harm, it would follow that fornication, absolutely speaking, is a more grievous sin than murder, which is evidently untrue. Therefore a sin is not more grievous on account of its causing a greater harm.

On the contrary, Augustine says (De Lib. Arb. iii, 14): "Since vice is contrary to nature, a vice is the more grievous according as it diminishes the integrity of nature." Now the diminution of the integrity of nature is a harm. Therefore a sin is graver according as it does more harm.

I answer that, Harm may bear a threefold relation to sin. Because sometimes the harm resulting from a sin is foreseen and intended, as when a man does something with a mind to harm another, e.g. a murderer or a thief. In this case the quantity of harm aggravates the sin directly, because then the harm is the direct object of the sin. Sometimes the harm is foreseen, but not intended; for instance, when a man takes a short cut through a field, the result being that he knowingly injures the growing crops, although his intention is not to do this harm, but to commit fornication. In this case again the quantity of the harm done aggravates the sin; indirectly, however, in so far, to wit, as it is owing to his will being strongly inclined to sin, that a man does not forbear from doing, to himself or to another, a harm which he would not wish simply. Sometimes, however, the harm is neither foreseen nor intended: and then if this harm is connected with the sin accidentally, it does not aggravate the sin directly; but, on account of his neglecting to consider the harm that might ensue, a man is deemed punishable for the evil results of his action if it be unlawful. If, on the other hand, the harm follow directly from the sinful act, although it be neither foreseen nor intended, it aggravates the sin directly, because whatever is directly consequent to a sin, belongs, in a manner, to the very species of that sin: for instance, if a man is a notorious fornicator, the result is that many are scandalized; and although such was not his intention, nor was it perhaps foreseen by him, yet it aggravates his sin directly.

But this does not seem to apply to penal harm, which the sinner himself incurs. Such like harm, if accidentally connected with the sinful act, and if neither foreseen nor intended, does not aggravate a sin, nor does it correspond with the gravity of the sin: for instance, if a man in running to slay, slips and hurts his foot. If, on the other hand, this harm is directly consequent to the sinful act, although perhaps it be neither foreseen nor intended, then greater harm does not make greater sin, but, on the contrary, a graver sin calls for the infliction of a greater harm. Thus, an unbeliever who has heard nothing about the pains of hell, would suffer greater pain in hell for a sin of murder than for a sin of theft: but his sin is not aggravated on account of his neither intending nor foreseeing this, as it would be in the case of a believer, who, seemingly, sins more grievously in the very fact that he despises a greater punishment, that he may satisfy his desire to sin; but the gravity of this harm is caused by the sole gravity of sin.

Reply Obj. 1: As we have already stated (Q. 20, A. 5), in treating of the goodness and malice of external actions, the result of an action if foreseen and intended adds to the goodness and malice of an act.

Reply Obj. 2: Although the harm done aggravates a sin, it does not follow that this alone renders a sin more grievous: in fact, it is inordinateness which of itself aggravates a sin. Wherefore the harm itself that ensues aggravates a sin, in so far only as it renders the act more inordinate. Hence it does not follow, supposing harm to be inflicted chiefly by sins against our neighbor, that such sins are the most grievous, since a much greater inordinateness is to be found in sins which man commits against God, and in some which he commits against himself. Moreover we might say that although no man can do God any harm in His substance, yet he can endeavor to do so in things concerning Him, e.g. by destroying faith, by outraging holy things, which are most grievous sins. Again, a man sometimes knowingly and freely inflicts harm on himself, as in the case of suicide, though this be referred finally to some apparent good, for example, delivery from some anxiety.

Reply Obj. 3: This argument does not prove, for two reasons: first, because the murderer intends directly to do harm to his neighbors; whereas the fornicator who solicits the woman intends not harm but pleasure; secondly, because murder is the direct and sufficient cause of bodily death; whereas no man can of himself be the sufficient cause of another's spiritual death, because no man dies spiritually except by sinning of his own will.

NINTH ARTICLE [I-II, Q. 73, Art. 9]

Whether a Sin Is Aggravated by Reason of the Condition of the Person Against Whom It Is Committed?

Objection 1: It would seem that sin is not aggravated by reason of the condition of the person against whom it is committed. For if this were the case a sin would be aggravated chiefly by being committed against a just and holy man. But this does not aggravate a sin: because a virtuous man who bears a wrong with equanimity is less harmed by the wrong done him, than others, who, through being scandalized, are also hurt inwardly. Therefore the condition of the person against whom a sin is committed does not aggravate the sin.

Obj. 2: Further, if the condition of the person aggravated the sin, this would be still more the case if the person be near of kin, because, as Cicero says (Paradox. iii): "The man who kills his slave sins once: he that takes his father's life sins many times." But the kinship of a person sinned against does not apparently aggravate a sin, because every man is most akin to himself; and yet it is less grievous to harm oneself than another, e.g. to kill one's own, than another's horse, as the Philosopher declares (Ethic. v, 11). Therefore kinship of the person sinned against does not aggravate the sin.

Obj. 3: Further, the condition of the person who sins aggravates a sin chiefly on account of his position or knowledge, according to Wis. 6:7: "The mighty shall be mightily tormented," and Luke 12:47: "The servant who knew the will of his lord . . . and did it not . . . shall be beaten with many stripes." Therefore, in like manner, on the part of the person sinned against, the sin is made more grievous by reason of his position and knowledge. But, apparently, it is not a more grievous sin to inflict an injury on a rich and powerful person than on a poor man, since "there is no respect of persons with God" (Col. 3:25), according to Whose judgment the gravity of a sin is measured. Therefore the condition of the person sinned against does not aggravate the sin.

On the contrary, Holy Writ censures especially those sins that are committed against the servants of God. Thus it is written (3 Kings 19:14): "They have destroyed Thy altars, they have slain Thy prophets with the sword." Moreover much blame is attached to the sin committed by a man against those who are akin to him, according to Micah 7:6: "the son dishonoreth the father, and the daughter riseth up against her mother." Furthermore sins committed against persons of rank are expressly condemned: thus it is written (Job 34:18): "Who saith to the king: 'Thou art an apostate'; who calleth rulers ungodly." Therefore the condition of the person sinned against aggravates the sin.

I answer that, The person sinned against is, in a manner, the object of the sin. Now it has been stated above (A. 3) that the primary gravity of a sin is derived from its object; so that a sin is deemed to be so much the more grave, as its object is a more principal end. But the principal ends of human acts are God, man himself, and his neighbor: for whatever we do, it is on account of one of these that we do it; although one of them is subordinate to the other. Therefore the greater or lesser gravity of a sin, in respect of the person sinned against, may be considered on the part of these three.

First, on the part of God, to Whom man is the more closely united, as he is more virtuous or more sacred to God: so that an injury inflicted on such a person redounds on to God according to Zech. 2:8: "He that toucheth you, toucheth the apple of My eye." Wherefore a sin is the more grievous, according as it is committed against a person more closely united to God by reason of personal sanctity, or official station. On the part of man himself, it is evident that he sins all the more grievously, according as the person against whom he sins, is more united to him, either through natural affinity or kindness received or any other bond; because he seems to sin against himself rather than the other, and, for this very reason, sins all the more grievously, according to Ecclus. 14:5: "He that is evil to himself, to whom will he be good?" On the part of his neighbor, a man sins the more grievously, according as his sin affects more persons: so that a sin committed against a public personage, e.g. a sovereign prince who stands in the place of the whole people, is more grievous than a sin committed against a private person; hence it is expressly prohibited (Ex. 22:28): "The prince of thy people thou shalt not curse." In like manner it would seem that an injury done to a person of prominence, is all the more grave, on account of the scandal and the disturbance it would cause among many people.

Reply Obj. 1: He who inflicts an injury on a virtuous person, so far as he is concerned, disturbs him internally and externally; but that the latter is not disturbed internally is due to his goodness, which does not extenuate the sin of the injurer.

Reply Obj. 2: The injury which a man inflicts on himself in those things which are subject to the dominion of his will, for instance his possessions, is less sinful than if it were inflicted on another, because he does it of his own will; but in those things that are not subject to the dominion of his will, such as natural and spiritual goods, it is a graver sin to inflict an injury on oneself: for it is more grievous for a man to kill himself than another. Since, however, things belonging to our neighbor are not subject to the dominion of our will, the argument fails to prove, in respect of injuries done to such like things, that it is less grievous to sin in their regard, unless indeed our neighbor be willing, or give his approval.

Reply Obj. 3: There is no respect for persons if God punishes more severely those who sin against a person of higher rank; for this is done because such an injury redounds to the harm of many.

TENTH ARTICLE [I-II, Q. 73, Art. 10]

Whether the Excellence of the Person Sinning Aggravates the Sin?

Objection 1: It would seem that the excellence of the person sinning does not aggravate the sin. For man becomes great chiefly by cleaving to God, according to Ecclus. 25:13: "How great is he that findeth wisdom and knowledge! but there is none above him that feareth the Lord." Now the more a man cleaves to God, the less is a sin imputed to him: for it is written (2 Paral. 30: 18, 19): "The Lord Who is good will show mercy to all them, who with their whole heart seek the Lord the God of their fathers; and will not impute it to them that they are not sanctified." Therefore a sin is not aggravated by the excellence of the person sinning.

Obj. 2: Further, "there is no respect of persons with God" (Rom. 2:11). Therefore He does not punish one man more than another, for one and the same sin. Therefore a sin is not aggravated by the excellence of the person sinning.

Obj. 3: Further, no one should reap disadvantage from good. But he would, if his action were the more blameworthy on account of his goodness. Therefore a sin is not aggravated by reason of the excellence of the person sinning.

On the contrary, Isidore says (De Summo Bono ii, 18): "A sin is deemed so much the more grievous as the sinner is held to be a more excellent person."

I answer that, Sin is twofold. There is a sin which takes us unawares on account of the weakness of human nature: and such like sins are less imputable to one who is more virtuous, because he is less negligent in checking those sins, which nevertheless human weakness does not allow us to escape altogether. But there are other sins which proceed from deliberation: and these sins are all the more imputed to man according as he is more excellent. Four reasons may be assigned for this. First, because a more excellent person, e.g. one who excels in knowledge and virtue, can more easily resist sin; hence Our Lord said (Luke 12:47) that the "servant who knew the will of his lord . . . and did it not . . . shall be beaten with many stripes." Secondly, on account of ingratitude, because every good in which a man excels, is a gift of God, to Whom man is ungrateful when he sins: and in this respect any excellence, even in temporal goods, aggravates a sin, according to Wis. 6:7: "The mighty shall be mightily tormented." Thirdly, on account of the sinful act being specially inconsistent with the excellence of the person sinning: for instance, if a prince were to violate justice, whereas he is set up as the guardian of justice, or if a priest were to be a fornicator, whereas he has taken the vow of chastity. Fourthly, on account of the example or scandal; because, as Gregory says (Pastor. i, 2): "Sin becomes much more scandalous, when the sinner is honored for his position": and the sins of the great are much more notorious and men are wont to bear them with more indignation.

Reply Obj. 1: The passage quoted alludes to those things which are done negligently when we are taken unawares through human weakness.

Reply Obj. 2: God does not respect persons in punishing the great more severely, because their excellence conduces to the gravity of their sin, as stated.

Reply Obj. 3: The man who excels in anything reaps disadvantage, not from the good which he has, but from his abuse thereof.

QUESTION 74

OF THE SUBJECT OF SIN (In Ten Articles)

We must now consider the subject of vice or sin: under which head there are ten points of inquiry:

(1) Whether the will can be the subject of sin?

(2) Whether the will alone is the subject of sin?

(3) Whether the sensuality can be the subject of sin?

(4) Whether it can be the subject of mortal sin?

(5) Whether the reason can be the subject of sin?

(6) Whether morose delectation or non-morose delectation be subjected in the higher reason?

(7) Whether the sin of consent in the act of sin is subjected in the higher reason?

(8) Whether the lower reason can be the subject of mortal sin?

(9) Whether the higher reason can be the subject of venial sin?

(10) Whether there can be in the higher reason a venial sin directed to its proper object?

FIRST ARTICLE [I-II, Q. 74, Art. 1]

Whether the Will Is a Subject of Sin?

Objection 1: It would seem that the will cannot be a subject of sin. For Dionysius says (Div. Nom. iv) that "evil is outside the will and the intention." But sin has the character of evil. Therefore sin cannot be in the will.

Obj. 2: Further, the will is directed either to the good or to what seems good. Now from the fact that will wishes the good, it does not sin: and that it wishes what seems good but is not truly good, points to a defect in the apprehensive power rather than in the will. Therefore sin is nowise in the will.

Obj. 3: Further, the same thing cannot be both subject and efficient cause of sin: because "the efficient and the material cause do not coincide" (Phys. 2, text. 70). Now the will is the efficient cause of sin: because the first cause of sinning is the will, as Augustine states (De Duabus Anim. x, 10, 11). Therefore it is not the subject of sin.

On the contrary, Augustine says (Retract. i, 9) that "it is by the will that we sin, and live righteously."

I answer that, Sin is an act, as stated above (Q. 71, AA. 1, 6). Now some acts pass into external matter, e.g. to cut and to burn: and such acts have for their matter and subject, the thing into which the action passes: thus the Philosopher states (Phys. iii, text. 18) that "movement is the act of the thing moved, caused by a mover." On the other hand, there are acts which do not pass into external matter, but remain in the agent, e.g. to desire and to know: and such are all moral acts, whether virtuous or sinful. Consequently the proper subject of sin must needs be the power which is the principle of the act. Now since it is proper to moral acts that they are voluntary, as stated above (Q. 1, A. 1; Q. 18, A. 6), it follows that the will, which is the principle of voluntary acts, both of good acts, and of evil acts or sins, is the principle of sins. Therefore it follows that sin is in the will as its subject.

Reply Obj. 1: Evil is said to be outside the will, because the will does not tend to it under the aspect of evil. But since some evil is an apparent good, the will sometimes desires an evil, and in this sense is in the will.

Reply Obj. 2: If the defect in the apprehensive power were nowise subject to the will, there would be no sin, either in the will, or in the apprehensive power, as in the case of those whose ignorance is invincible. It remains therefore that when there is in the apprehensive power a defect that is subject to the will, this defect also is deemed a sin.

Reply Obj. 3: This argument applies to those efficient causes whose actions pass into external matter, and which do not move themselves, but move other things; the contrary of which is to be observed in the will; hence the argument does not prove.

SECOND ARTICLE [I-II, Q. 74, Art. 2]

Whether the Will Alone Is the Subject of Sin?

Objection 1: It would seem that the will alone is the subject of sin. For Augustine says (De Duabus Anim. x, 10) that "no one sins except by the will." Now the subject of sin is the power by which we sin. Therefore the will alone is the subject of sin.

Obj. 2: Further, sin is an evil contrary to reason. Now good and evil pertaining to reason are the object of the will alone. Therefore the will alone is the subject of sin.

Obj. 3: Further, every sin is a voluntary act, because, as Augustine states (De Lib. Arb. iii, 18) [*Cf. De Vera Relig. xiv.], "so true is it that every sin is voluntary, that unless it be voluntary, it is no sin at all." Now the acts of the other powers are not voluntary, except in so far as those powers are moved by the will; nor does this suffice for them to be the subject of sin, because then even the external members of the body, which are moved by the will, would be a subject of sin; which is clearly untrue. Therefore the will alone is the subject of sin.

On the contrary, Sin is contrary to virtue: and contraries are about one same thing. But the other powers of the soul, besides the will, are the subject of virtues, as stated above (Q. 56). Therefore the will is not the only subject of sin.

I answer that, As was shown above (A. 1), whatever is the a principle of a voluntary act is a subject of sin. Now voluntary acts are not only those which are elicited by the will, but also those which are commanded by the will, as we stated above (Q. 6, A. 4) in treating of voluntariness. Therefore not only the will can be a subject of sin, but also all those powers which can be moved to their acts, or restrained from their acts, by the will; and these same powers are the subjects of good and evil moral habits, because act and habit belong to the same subject.

Reply Obj. 1: We do not sin except by the will as first mover; but we sin by the other powers as moved by the will.

Reply Obj. 2: Good and evil pertain to the will as its proper objects; but the other powers have certain determinate goods and evils, by reason of which they can be the subject of virtue, vice, and sin, in so far as they partake of will and reason.

Reply Obj. 3: The members of the body are not principles but merely organs of action: wherefore they are compared to the soul which moves them, as a slave who is moved but moves no other. On the other hand, the internal appetitive powers are compared to reason as free agents, because they both act and are acted upon, as is made clear in Polit.i, 3. Moreover, the acts of the external members are actions that pass into external matter, as may be seen in the blow that is inflicted in the sin of murder. Consequently there is no comparison.

THIRD ARTICLE [I-II, Q. 74, Art. 3]

Whether There Can Be Sin in the Sensuality?

Objection 1: It would seem that there cannot be sin in the sensuality. For sin is proper to man who is praised or blamed for his actions. Now sensuality is common to us and irrational animals. Therefore sin cannot be in the sensuality.

Obj. 2: Further, "no man sins in what he cannot avoid," as Augustine states (De Lib. Arb. iii, 18). But man cannot prevent the movement of the sensuality from being inordinate, since "the sensuality ever remains corrupt, so long as we abide in this mortal life; wherefore it is signified by the serpent," as Augustine declares (De Trin. xii, 12, 13). Therefore the inordinate movement of the sensuality is not a sin.

Obj. 3: Further, that which man himself does not do is not imputed to him as a sin. Now "that alone do we seem to do ourselves, which we do with the deliberation of reason," as the Philosopher says (Ethic. ix, 8). Therefore the movement of the sensuality, which is without the deliberation of reason, is not imputed to a man as a sin.

On the contrary, It is written (Rom. 7:19): "The good which I will I do not; but the evil which I will not, that I do": which words Augustine explains (Contra Julian. iii, 26; De Verb. Apost. xii, 2, 3), as referring to the evil of concupiscence, which is clearly a movement of the sensuality. Therefore there can be sin in the sensuality.

I answer that, As stated above (AA. 2, 3), sin may be found in any power whose act can be voluntary and inordinate, wherein consists the nature of sin. Now it is evident that the act of the sensuality, or sensitive appetite, is naturally inclined to be moved by the will. Wherefore it follows that sin can be in the sensuality.

Reply Obj. 1: Although some of the powers of the sensitive part are common to us and irrational animals, nevertheless, in us, they have a certain excellence through being united to the reason; thus we surpass other animals in the sensitive part for as much as we have the powers of cogitation and reminiscence, as stated in the First Part (Q. 78, A. 4). In the same way our sensitive appetite surpasses that of other animals by reason of a certain excellence consisting in its natural aptitude to obey the reason; and in this respect it can be the principle of a voluntary action, and, consequently, the subject of sin.

Reply Obj. 2: The continual corruption of the sensuality is to be understood as referring to the fomes, which is never completely destroyed in this life, since, though the stain of original sin passes, its effect remains. However, this corruption of the fomes does not hinder man from using his rational will to check individual inordinate movements, if he be presentient of them, for instance by turning his thoughts to other things. Yet while he is turning his thoughts to something else, an inordinate movement may arise about this also: thus when a man, in order to avoid the movements of concupiscence, turns his thoughts away from carnal pleasures, to the considerations of science, sometimes an unpremeditated movement of vainglory will arise. Consequently, a man cannot avoid all such movements, on account of the aforesaid corruption: but it is enough, for the conditions of a voluntary sin, that he be able to avoid each single one.

Reply Obj. 3: Man does not do perfectly himself what he does without the deliberation of reason, since the principal part of man does nothing therein: wherefore such is not perfectly a human act; and consequently it cannot be a perfect act of virtue or of sin, but is something imperfect of that kind. Therefore such movement of the sensuality as forestalls the reason, is a venial sin, which is something imperfect in the genus of sin.

FOURTH ARTICLE [I-II, Q. 74, Art. 4]

Whether Mortal Sin Can Be in the Sensuality?

Objection 1: It would seem that mortal sin can be in the sensuality. Because an act is discerned by its object. Now it is possible to commit a mortal sin about the objects of the sensuality, e.g. about carnal pleasures. Therefore the act of the sensuality can be a mortal sin, so that mortal sin can be found in the sensuality.

Obj. 2: Further, mortal sin is opposed to virtue. But virtue can be in the sensuality; for temperance and fortitude are virtues of the irrational parts, as the Philosopher states (Ethic. iii, 10). Therefore, since it is natural to contraries to be about the same subject, sensuality can be the subject of mortal sin.

Obj. 3: Further, venial sin is a disposition to mortal sin. Now disposition and habit are in the same subject. Since therefore venial sin may be in the sensuality, as stated above (A. 3, ad 3), mortal sin can be there also.

On the contrary, Augustine says (Retract. i, 23): "The inordinate movement of concupiscence, which is the sin of the sensuality, can even be in those who are in a state of grace," in whom, however, mortal sin is not to be found. Therefore the inordinate movement of the sensuality is not a mortal sin.

I answer that, Just as a disorder which destroys the principle of the body's life causes the body's death, so too a disorder which destroys the principle of spiritual life, viz. the last end, causes spiritual death, which is mortal sin, as stated above (Q. 72, A. 5). Now it belongs to the reason alone, and not to the sensuality, to order anything to the end: and disorder in respect of the end can only belong to the power whose function it is to order others to the end. Wherefore mortal sin cannot be in the sensuality, but only in the reason.