Human, all too human.

Whoever has overthrown an existing law of custom has always first been accounted a bad man: but when, as did happen, the law could not afterwards be reinstated and this fact was accepted, the predicate gradually changed; - history treats almost exclusively of these bad men who subsequently became good men!

At times one remains faithful to a cause only because its opponents do not cease to be insipid.

But are there many honest people who will admit that it is pleasing to give pain?

Oh great star! What would your happiness be if you did not have us to shine for?

Love your enemies because they bring out the best in you.

I am not bigoted enough for a system-and not even for my system.