"We should consider every day lost on which we have not danced at least once."

"I teach you the overman. Man is something that shall be overcome. What have you done to overcome him?"

"Man's maturity: to have reacquired the seriousness that one had as a child at play."

"There are no facts, only interpretations."

"Many a man is too proud to beg, and too poor to starve."