All in all, punishment hardens and renders people more insensible; it concentrates; it increases the feeling of estrangement; it strengthens the power of resistance.

Learn to laugh at yourselves as one must laugh!

We belong to an age whose culture is in danger of perishing through the means to culture.

I have learned to walk: ever since, I let myself run. I have learned to fly: ever since, I do not want to be pushed before moving along.

The apprentice and the master love the master in different ways.

Compulsion precedes morality, indeed morality itself is compulsion for a time, to which one submits for the avoidance of pain.

The perfect woman is a higher type of humanity than the perfect man, and also something much rarer. The natural history of animals furnishes grounds in support of this theory.