The more I learn of physics, the more I am drawn to metaphysics.

Insanity: doing the same thing over and over again and expecting different results.

I would teach peace rather than war, love rather than hate.

I never think of the future - it comes soon enough.

Even though the realms of religion and science in themselves are clearly marked off from each other, nevertheless there exist between the two strong reciprocal relationships and dependencies.

The value of a man should be seen in what he gives and not in what he is able to receive.

If I had an hour to solve a problem and my life depended on the solution, I would spend the first 55 minutes determining the proper question to ask, for once I know the proper question, I could solve the problem in less than five minutes.