If you leave your art, the world will beat you back to it. The world has not an ambition worth sharing, or a prize worth handling.

You'll never have a quiet world till you knock the patriotism out of the human race.

A fool-proof method for sculpting an elephant: first, get a huge block of marble; then you chip away everything that doesn't look like an elephant.

Even if animal experimentation was proved to be of value, it would be morally wrong.

The golden rule is that there are no golden rules.

I can't turn your soul on. Leave me those feelings; and you can take away the voice and the face. They are not you.

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?