Respect the gods and the devils but keep them at a distance
I never really said all those things I said
Knowledge is recognizing what you know and what you don't.
If you make a mistake and do not correct it, this is called a mistake.
A fool marvels at rare things, but a wise man at common ones.
For one word a man is often deemed to be wise, and for one word he is often deemed to be foolish. We should be careful indeed what we say.