Of Lust

Of Lust — St. Thomas Aquinas asks: Whether the matter of lust is only venereal desires and pleasures?; Whether no venereal act can be without sin?; Whether the lust that is about venereal acts can be a sin?; Whether lust is a capital vice?; Whether the daughters of lust are fittingly described?.

We must next consider the vice of lust which is opposed to chastity: (1) Lust in general; (2) its species. Under the first head there are five points of inquiry:

Article 1: Whether the matter of lust is only venereal desires and pleasures?

To the lustful it is said (De Vera Relig. iii [*Written by St. Augustine]): "He that soweth in the flesh, of the flesh shall reap corruption." Now the sowing of the flesh refers to venereal pleasures. Therefore these belong to lust.

As Isidore says (Etym. x), "a lustful man is one who is debauched with pleasures." Now venereal pleasures above all debauch a man's mind. Therefore lust is especially concerned with such like pleasures.

Article 2: Whether no venereal act can be without sin?

Augustine says (De Bono Conjug. xxv): "This is a sufficient answer to heretics, if only they will understand that no sin is committed in that which is against neither nature, nor morals, nor a commandment": and he refers to the act of sexual intercourse between the patriarchs of old and their several wives. Therefore not every venereal act is a sin.

A sin, in human acts, is that which is against the order of reason. Now the order of reason consists in its ordering everything to its end in a fitting manner. Wherefore it is no sin if one, by the dictate of reason, makes use of certain things in a fitting manner and order for the end to which they are adapted, provided this end be something truly good. Now just as the preservation of the bodily nature of one individual is a true good, so, too, is the preservation of the nature of the human species a very great good. And just as the use of food is directed to the preservation of life in the individual, so is the use of venereal acts directed to the preservation of the whole human race. Hence Augustine says (De Bono Conjug. xvi): "What food is to a man's well being, such is sexual intercourse to the welfare of the whole human race." Wherefore just as the use of food can be without sin, if it be taken in due manner and order, as required for the welfare of the body, so also the use of venereal acts can be without sin, provided they be performed in due manner and order, in keeping with the end of human procreation.

Article 3: Whether the lust that is about venereal acts can be a sin?

The cause is more powerful than its effect. Now wine is forbidden on account of lust, according to the saying of the Apostle (Eph. 5:18), "Be not drunk with wine wherein is lust [Douay: 'luxury']." Therefore lust is forbidden.

Further, it is numbered among the works of the flesh: Gal. 5:19 [Douay: 'luxury'].

The more necessary a thing is, the more it behooves one to observe the order of reason in its regard; wherefore the more sinful it becomes if the order of reason be forsaken. Now the use of venereal acts, as stated in the foregoing Article, is most necessary for the common good, namely the preservation of the human race. Wherefore there is the greatest necessity for observing the order of reason in this matter: so that if anything be done in this connection against the dictate of reason's ordering, it will be a sin. Now lust consists essentially in exceeding the order and mode of reason in the matter of venereal acts. Wherefore without any doubt lust is a sin.

Article 4: Whether lust is a capital vice?

Gregory (Moral. xxxi, 45) places lust among the capital vices.

As stated above (; ), a capital vice is one that has a very desirable end, so that through desire for that end, a man proceeds to commit many sins, all of which are said to arise from that vice as from a principal vice. Now the end of lust is venereal pleasure, which is very great. Wherefore this pleasure is very desirable as regards the sensitive appetite, both on account of the intensity of the pleasure, and because such like concupiscence is connatural to man. Therefore it is evident that lust is a capital vice.

Article 5: Whether the daughters of lust are fittingly described?

stands the authority of Gregory (Moral. xxxi, 45).

When the lower powers are strongly moved towards their objects, the result is that the higher powers are hindered and disordered in their acts. Now the effect of the vice of lust is that the lower appetite, namely the concupiscible, is most vehemently intent on its object, to wit, the object of pleasure, on account of the vehemence of the pleasure. Consequently the higher powers, namely the reason and the will, are most grievously disordered by lust.

Now the reason has four acts in matters of action. First there is simple understanding, which apprehends some end as good, and this act is hindered by lust, according to Dan. 13:56, "Beauty hath deceived thee, and lust hath perverted thy heart." In this respect we have "blindness of mind." The second act is counsel about what is to be done for the sake of the end: and this is also hindered by the concupiscence of lust. Hence Terence says (Eunuch., act 1, sc. 1), speaking of lecherous love: "This thing admits of neither counsel nor moderation, thou canst not control it by counseling." In this respect there is "rashness," which denotes absence of counsel, as stated above (). The third act is judgment about the things to be done, and this again is hindered by lust. For it is said of the lustful old men (Dan. 13:9): "They perverted their own mind . . . that they might not . . . remember just judgments." In this respect there is "thoughtlessness." The fourth act is the reason's command about the thing to be done, and this also is impeded by lust, in so far as through being carried away by concupiscence, a man is hindered from doing what his reason ordered to be done. [To this "inconstancy" must be referred.] [*The sentence in brackets is omitted in the Leonine edition.] Hence Terence says (Eunuch., act 1, sc. 1) of a man who declared that he would leave his mistress: "One little false tear will undo those words."

On the part of the will there results a twofold inordinate act. One is the desire for the end, to which we refer "self-love," which regards the pleasure which a man desires inordinately, while on the other hand there is "hatred of God," by reason of His forbidding the desired pleasure. The other act is the desire for the things directed to the end. With regard to this there is "love of this world," whose pleasures a man desires to enjoy, while on the other hand there is "despair of a future world," because through being held back by carnal pleasures he cares not to obtain spiritual pleasures, since they are distasteful to him.