What was formerly merely sickly now becomes indecent : it is indecent to be a Christian today.

He who fights with monsters might take care lest he thereby become a monster. Is not life a hundred times too short for us to bore ourselves?

The destiny of the human race is to widen the gap separating it from the lower races of animals. Any code of morality which retains its permanence and authority after the conditions of existence which gave rise to it have changed, works against this upward progress of man.

Life is at an end where the kingdom of God begins

There is no pre-established harmony between the furtherance of truth and the well-being of mankind.

And those who were seen dancing were thought to be insane by those who could not hear the music.

What is evil?-Whatever springs from weakness.