A fool's brain digests philosophy into folly, science into superstition, and art into pedantry. Hence University education.

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.

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.

The right combination of guilt and machismo has sent many a fool out into the jungle when he should have stayed home.

The tongue of a fool is the key of his counsel, which, in a wise man, wisdom hath in keeping.

I am a fool, but I know I'm a fool and that makes me smarter than you.