It takes just such painful and terrible things to occur for the great emancipation to take place.

The thought of suicide is a great source of comfort: with it a calm passage is to be made across many a bad night.

The coward does not know what it means to be alone: an enemy is always standing behind his chair.

Noble and wise men once believed in the music of the spheres: noble and wise men still continue to believe in the "moral significance of existence." But one day even this sphere-music will no longer be audible to them! They will wake up and take note that their ears were dreaming.

One lives for the day, one lives very fast, one lives very irresponsibly: precisely this is called "freedom."

Philosophers are in the habit of setting themselves before life and experience.

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.