It is necessary for the welfare of society that genius should be privileged to utter sedition, to blaspheme, to outrage good taste, to corrupt the youthful mind, and generally to scandalize one's uncles.

If a group of beings from another planet were to land on Earth - beings who considered themselves as superior to you as you feel yourself to be to other animals - would you concede them the rights over you that you assume over other animals?

Fine art is the subtlest, the most seductive, the most effective instrument of moral propaganda in the world, excepting only the example of personal conduct; and I waive even this exception in favor of the art of the stage, because it works by exhibiting examples of personal conduct made intelligible and moving to crowds of unobservant unreflecting people to whom real life means nothing.

I have to live for others and not for myself: that's middle-class morality.

Youth, which is forgiven everything, forgives itself nothing: age, which forgives itself everything, is forgiven nothing.

I have never thought much of the courage of a lion tamer. Inside the cage he is at least safe from other men. There is not much harm in a lion. He has no ideals, no religion, no politics, no chivalry, no gentility; in short, no reason for destroying anything that he does not want to eat

Affection between adults - if they are really adult in mind and not merely grown up children - and creatures so relatively selfish and cruel as children necessarily are without knowing it or meaning it, cannot be called natural.