Every man, in his own opinion, forms an exception to the ordinary rules of morality.

For morality life is a war, and the service of the highest is a sort of cosmic patriotism which also calls for volunteers.

Moral indignation in most cases is, 2% moral, 48% indignation, and 50% envy.

Morality is a venereal disease. Its primary stage is called virtue; its secondary stage, boredom; its tertiary stage, syphilis.

Never let your sense of morals prevent you from doing what's right.

The moral virtues, then, are produced in us neither by nature nor against nature. Nature, indeed, prepares in us the ground for their reception, but their complete formation is ...