No man is hurt but by himself. ...Literally by how he interprets what happens to him. If he focusses on how it could have been better, he will be hurt. If he focusses on how it could have been worse, he will be happy. The same is true for women too.

As a matter of self-preservation, a man needs good friends or ardent enemies, for the former instruct him and the latter take him to task.

The question was put to him, what hope is; and his answer was, "The dream of a waking man."

When I look upon seamen, men of science and philosophers, man is the wisest of all beings; when I look upon priests and prophets nothing is as contemptible as man.

Wise kings generally have wise counselors; and he must be a wise man himself who is capable of distinguishing one.

The sacrifice of Diogenes to all the gods.

I like best the wine drunk at the cost of others.