Do not say hypothesis, and even less theory: say way of thinking.

The worst thing you can possibly do is worrying and thinking about what you could have done.

There is something in our minds like sunshine and the weather, which is not under our control. When I write, the best things come to me from I know not where.

With God thoughts are colors, with us they are pigments-even the most abstract one may be accompanied by physical pain.

He marvelled at the fact that the cats had two holes cut in their fur at precisely the spot where their eyes were.

There are very many people who read simply to prevent themselves from thinking.

Virtue by premeditation isn't worth much.