A system of morality that is based on relative emotional values is a mere illusion, a thoroughly vulgar conception that has nothing sound in it and nothing true.

If you will take my advice you will think little of Socrates, and a great deal more of truth.

Be true to thine own self.

If one knows what is right, he will do it; nobody wants to be evil

One cannot come closer to the gods than by bringing health to his Fellow Man.

I don't care what people say about me. I do care about my mistakes.

The wise man seeks death all his life, and for this reason death is not terrifying to him.