You highest men whom I have ever seen! This is my suspicion about you and my secret laughter: I guess that you would call my superman--a devil!

Madness is the result not of uncertainty but certainty.

We fear our neighbor's hostile mood because we are afraid that this mood will lead him to penetrate our secrets.

Art is not merely an imitation of the reality of nature, but in truth a metaphysical supplement to the reality of nature, placed alongside thereof for its conquest.

Sometimes we owe a friend to the lucky circumstance that we give him no cause for envy.

There would be no sunshine in society if the born flatterers, I mean the so-called amiable people, did not bring it in with them.

Mankind must work continually to produce individual great human beings - this and nothing else is the task... for the question is this : How can your life, the individual life, retain the highest value, the deepest significance? Only by living for the good of the rarest and most valuable specimens.