An important species of pleasure, and therewith the source of morality, arises out of habit.

Women are quite able to make friends with a man; but to preserve such a friendship - that no doubt requires the assistance of a slight physical antipathy

We talk so abstractly about poetry because all of us are usually bad poets.

I condemn Christianity; I bring against the Christian Church the most terrible of all accusations that an accuser has ever had in his mouth. It is, to me, the greatest of all imaginable corruptions; it seeks to work the ultimate corruption, the worse possible corruption. The Christian Church has left nothing untouched by its depravity; it has turned every value into worthlessness, and every truth into a lie, and every integrity into baseness of soul.

What the philosopher is seeking is not truth, but rather the metamorphosis of the world into man.

The hypocrite who always plays one and the same part ceases at last to be a hypocrite.

What I understand by "philosopher": a terrible explosive in the presence of which everything is in danger.