When I am working on a problem, I never think about beauty but when I have finished, if the solution is not beautiful, I know it is wrong.

I'm not a genius. I'm just a tremendous bundle of experience.

God is a verb, not a noun.

Parents are usually more careful to bestow knowledge on their children rather than virtue, the art of speaking well rather than doing well; but their manners should be of the greatest concern.

I look for what needs to be done. After all, that's how the universe designs itself.

Love is metaphysical gravity.