The physicists say that I am a mathematician, and the mathematicians say that I am a physicist. I am a completely isolated man and though everybody knows me, there are very few people who really know me.

You think you have troubles with mathematics . . . I assure you mine are still bigger.

People should be more like animals . . . they should be more intuitive; they should not be too conscious of what they do while they do it.

I shall never believe that God plays dice with the world.

Man's will, sustained by an indominable conviction, is much more powerful than material forces that seem insurmountable.

I have come to know the mutability of all human relationships and have learned to insulate myself against both heat and cold so that a temperature balance is fairly well assured.

I asked myself childish questions and proceeded to answer them.