If a man wishes to rid himself of a feeling of unbearable oppression, he may have to take hashish.

What we experience in dreams - assuming that we experience it often - belongs in the end just as much to the over-all economy of our soul as anything experienced "actually": we are richer or poorer on account of it.

A person must have a good memory to keep the promises he has made. A person must have a strong imagination to be able to have pity. So closely is morality tied to the quality of the intellect.

Madness is the result not of uncertainty but certainty.

Women are considered deep - why? Because one can never discover any bottom to them. Women are not even shallow.

The really historical performance would talk to ghosts.

All religions bear traces of the fact that they arose during the intellectual immaturity of the human race - before it had learned the obligations to speak the truth. Not one of them makes it the duty of its god to be truthful and understandable in his communications.