Subordination to morality can be slavish or vain or self- interested or resigned or gloomily enthusiastic or thoughtless or an act of despair, just as subordination to a prince can be: in itself it is nothing moral.

Freedom is the will to be responsible for ourselves.

It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters.

The final reward of the dead - to die no more

It is obvious that all sense has gone out of modern marriage; which is, however, no objection to marriage but to modernity.

Society tames the wolf into a dog. And man is the most domesticated animal of all.

Evolution does not make happiness its goal; it aims simply at evolution and nothing else.