Of Folly Which Is Opposed To Wisdom

We must now consider folly which is opposed to wisdom; and under this head there are three points of inquiry:

(1) Whether folly is contrary to wisdom?

(2) Whether folly is a sin?

(3) To which capital sin is it reducible?

Whether Folly Is Contrary To Wisdom?

Objection 1

It would seem that folly is not contrary to wisdom. For seemingly unwisdom is directly opposed to wisdom. But folly does not seem to be the same as unwisdom, for the latter is apparently about Divine things alone, whereas folly is about both Divine and human things. Therefore folly is not contrary to wisdom.

Objection 2

Further, one contrary is not the way to arrive at the other. But folly is the way to arrive at wisdom, for it is written (1 Cor. 3:18): “If any man among you seem to be wise in this world, let him become a fool, that he may be wise.” Therefore folly is not opposed to wisdom.

Objection 3

Further, one contrary is not the cause of the other. But wisdom is the cause of folly; for it is written (Jer. 10:14): “Every man is become a fool for knowledge,” and wisdom is a kind of knowledge. Moreover, it is written (Isa. 47:10): “Thy wisdom and thy knowledge, this hath deceived thee.” Now it belongs to folly to be deceived. Therefore folly is not contrary to wisdom.

Objection 4

Further, Isidore says (Etym. x, under the letter S) that “a fool is one whom shame does not incite to sorrow, and who is unconcerned when he is injured.” But this pertains to spiritual wisdom, according to Gregory (Moral. x, 49). Therefore folly is not opposed to wisdom.

On the contrary

Gregory says (Moral. ii, 26) that “the gift of wisdom is given as a remedy against folly.”

I answer that

Stultitia (Folly) seems to take its name from stupor; wherefore Isidore says (loc. cit.): “A fool is one who through dullness (stuporem) remains unmoved.” And folly differs from fatuity, according to the same authority (Etym. x), in that folly implies apathy in the heart and dullness in the senses, while fatuity denotes entire privation of the spiritual sense. Therefore folly is fittingly opposed to wisdom.

For “sapiens” (wise) as Isidore says (Etym. x) “is so named from sapor (savor), because just as the taste is quick to distinguish between savors of meats, so is a wise man in discerning things and causes.” Wherefore it is manifest that folly is opposed to wisdom as its contrary, while fatuity is opposed to it as a pure negation: since the fatuous man lacks the sense of judgment, while the fool has the sense, though dulled, whereas the wise man has the sense acute and penetrating.

Reply to Objection 1

According to Isidore (Etym. x), “unwisdom is contrary to wisdom because it lacks the savor of discretion and sense”; so that unwisdom is seemingly the same as folly. Yet a man would appear to be a fool chiefly through some deficiency in the verdict of that judgment, which is according to the highest cause, for if a man fails in judgment about some trivial matter, he is not for that reason called a fool.

Reply to Objection 2

Just as there is an evil wisdom, as stated above (Q. 45, A. 1, ad 1), called “worldly wisdom,” because it takes for the highest cause and last end some worldly good, so too there is a good folly opposed to this evil wisdom, whereby man despises worldly things: and it is of this folly that the Apostle speaks.

Reply to Objection 3

It is the wisdom of the world that deceives and makes us foolish in God’s sight, as is evident from the Apostle’s words (1 Cor. 3:19).

Reply to Objection 4

To be unconcerned when one is injured is sometimes due to the fact that one has no taste for worldly things, but only for heavenly things. Hence this belongs not to worldly but to Divine wisdom, as Gregory declares (Moral. x, 49). Sometimes however it is the result of a man’s being simply stupid about everything, as may be seen in idiots, who do not discern what is injurious to them, and this belongs to folly simply.

Whether Folly Is A Daughter Of Lust?

Objection 1

It would seem that folly is not a daughter of lust. For Gregory (Moral. xxxi, 45) enumerates the daughters of lust, among which however he makes no mention of folly. Therefore folly does not proceed from lust.

Objection 2

Further, the Apostle says (1 Cor. 3:19): “The wisdom of this world is foolishness with God.” Now, according to Gregory (Moral. x, 29) “the wisdom of this world consists in covering the heart with crafty devices;” and this savors of duplicity. Therefore folly is a daughter of duplicity rather than of lust.

Objection 3

Further, anger especially is the cause of fury and madness in some persons; and this pertains to folly. Therefore folly arises from anger rather than from lust.

On the contrary

It is written (Prov. 7:22): “Immediately he followeth her,” i.e. the harlot … “not knowing that he is drawn like a fool to bonds.”

I answer that

As already stated (A. 2), folly, in so far as it is a sin, is caused by the spiritual sense being dulled, so as to be incapable of judging spiritual things. Now man’s sense is plunged into earthly things chiefly by lust, which is about the greatest of pleasures; and these absorb the mind more than any others. Therefore the folly which is a sin, arises chiefly from lust.

Reply to Objection 1

It is part of folly that a man should have a distaste for God and His gifts. Hence Gregory mentions two daughters of lust, pertaining to folly, namely, “hatred of God” and “despair of the life to come”; thus he divides folly into two parts as it were.

Reply to Objection 2

These words of the Apostle are to be understood, not causally but essentially, because, to wit, worldly wisdom itself is folly with God. Hence it does not follow that whatever belongs to worldly wisdom, is a cause of this folly.

Reply to Objection 3

Anger by reason of its keenness, as stated above (I-II, Q. 48, AA. 2, 3, 4), produces a great change in the nature of the body, wherefore it conduces very much to the folly which results from a bodily impediment. On the other hand the folly which is caused by a spiritual impediment, viz. by the mind being plunged into earthly things, arises chiefly from lust, as stated above.