When I write, I do it urged by an intimate necessity. I don't have in mind an exclusive public, or a public of multitudes, I don't think in either thing. I think about expressing what I want to say. I try to do it in the simplest way possible.

I have used the philosophers' ideas for my own private literary purposes, but I don't think that I'm a thinker. I suppose that my thinking has been done for me by Berkeley, by Hume, by Schopenhauer, by Mauthner perhaps.

Creativity is suspended between memory and forgetting.

The great American writer Herman Melville says somewhere in The White Whale that a man ought to be 'a patriot to heaven,' and I believe it is a good thing, this ambition to be a cosmopolitan, this idea to be citizens not of a small parcel of the world that changes according to the currents of politics, according to the wars, to what occurs, but to feel that the whole world is our country.

I have no personal system of philosophy. I never attempt to do that. I am merely a man of letters.

I came to the idea of how fine it would be to think of an encyclopedia of an actual world, and then of an encyclopedia, a very rigorous one of course, of an imaginary world, where everything should be linked.

There is no intellectual exercise which is not ultimately useless.