Science is feasible when the variables are few and can be enumerated; when their combinations are distinct and clear. We are tending toward the condition of science and aspiring to do it. The artist works out his own formulas; the interest of science lies in the art of making science.

History is the science of things which are not repeated.

The mind has transformed the world, and the world is repaying it with interest. It has led man where he had no idea how to go.

If what has happened in the one person were communicated directly to the other, all art would collapse, all the effects of art would disappear.

To see is to forget the name of the thing one sees.

Man's great misfortune is that he has no organ, no kind of eyelid or brake, to mask or block a thought, or all thought, when he wants to.

Let us enrich ourselves with our mutual differences.