Take possession of the air, submit the elements, penetrate the last redoubts of nature, make space retreat, make death retreat.

To a man whose mind is free there is something even more intolerable in the sufferings of animals than in the sufferings of man. For with the latter it is at least admitted that suffering is evil and that the man who causes it is a criminal. But thousands of animals are uselessly butchered every day without a shadow of remorse. If any man were to refer to it, he would be thought ridiculous. And that is the unpardonable crime.

Love of my country does not demand that I shall hate and slay those noble and faithful souls who also love theirs.

If a man is to shed the light of the sun upon other men, he must first of all have it within himself.

All these young millionaires were anarchists, of course: when a man possesses everything it is the supreme luxury for him to deny society: for in that way he can evade his responsibilities

Any man who is really a man must learn to be alone in the midst of others, to think alone for others, and, if necessary, against others.

There is no joy other than the joy of creating. There is no man who is truly alive other than one who is creating. All others are just shadows on the earth with nothing to do with being alive. The joy of living, whether it is love or action, is the joy of creating.