If at first the idea is not absurd, then there is no hope for it.

Infinite striving to be the best is man's duty; It is its own reward. Everything else is in god's hands. It's not that I'm so smart, it's just that I stay with problems longer.

Balance in large measure is knowing the things that can be changed, putting them in proper perspective, and recognizing the things that will not change."

Nationalism is an infantile disease. It is the measles of mankind.

Play is the highest from of research.

I see a pattern, but my imagination cannot picture the maker of that pattern. I see a clock, but I cannot envision the clockmaker. The human mind is unable to conceive of the four dimensions, so how can it conceive of a God, before whom a thousand years and a thousand dimensions are as one?

The most aggravating thing about the younger generation is that I no longer belong to it.