“In some remote corner of the universe, poured out and glittering among innumerable solar systems, there once was a star on which clever animals invented knowledge.”

“For your Bildung you should choose the most difficult and splendid problem, but as subject for a dissertation choose no more than a very limited and remote corner.”

“There are many good inventions on earth, some useful, some pleasing: for their sake, the earth is to be loved. And there is such a variety of well-invented things that the earth is like the breasts of a woman: useful as well as pleasing.”

“Morality is neither rational nor absolute nor natural. World has known many moral systems, each of which advances claims universality; all moral systems are therefore particular, serving a specific purpose for their propagators or creators, and enforcing a certain regime that disciplines human beings for social life by narrowing our perspectives and limiting our horizons.”

“The tension of the soul in unhappiness, which cultivates its strength; its horror at the sight of the great destruction; its inventiveness and bravery in bearing, enduring, interpreting, exploiting unhappiness, and whatever in the way of depth, mystery, mask, spirit, cleverness, greatness the heart has been granted - has it not been granted them through suffering, through the discipline of great suffering?”

“As long as you still experience the stars as something "above you", you lack the eye of knowledge.”

“What, if some day or night a demon were to steal after you into your loneliest loneliness and say to you: 'This life as you now live it and have lived it, you will have to live once more and innumerable times more' ... Would you not throw yourself down and gnash your teeth and curse the demon who spoke thus? Or have you once experienced a tremendous moment when you would have answered him: 'You are a god and never have I heard anything more divine.”