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

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

Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

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

The foolish man conceives the idea of 'self.' The wise man sees there is no ground on which to build the idea of 'self;' thus, he has a right conception of the world and well concludes that all compounds amassed by sorrow will be dissolved again, but the truth will remain.

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.