How can it be that mathematics, being after all a product of human thought which is independent of experience, is so admirably appropriate to the objects of reality?

I admit that thoughts influence the body.

In music I do not look for logic. I am quite intuitive on the whole and know no theories. I never like a work if I cannot intuitively grasp its inner unity (architecture).

When I'm judging a theory, I ask myself whether, if I were God, I would have arranged the world in such a way.

For the most part, I do the thing which my own nature prompts me to do. It is embarrassing to earn so much respect and love for it.

The world is an evil place to live in. Not for those who do evil, but for those who sit back and allow evil to occur.

God gave me the stubbornness of a mule and a fairly keen scent.