Fools call wise men fools. A wise man never calls any man a fool.

Better a witty fool, than a foolish wit.

It is better to remain silent and be thought a fool, than to open your mouth and remove all doubts.

Do not keep company with a fool for as we can see he is a two-legged beast. Like an unseen thorn he pierces the heart with his sharp words.

Foolishness is indeed painful, and verily so is youth, but more painful by far than either is being obliged in another person's house.

The man who remains a fool even in advanced age is really a fool, just as the Indra-Varuna fruit does not become sweet no matter how ripe it might become.