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 (Is. 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.