It is our responsibility to leave the people of the future a free hand.

The present situation in physics is as if we know chess, but we don't know one or two rules.

I couldn't claim that I was smarter than sixty-five other guys--but the average of sixty-five other guys, certainly!

Know how to solve every problem that has been solved.

I don't know what's the matter with people: they don't learn by understanding, they learn by some other way — by rote or something. Their knowledge is so fragile!

Doubt is clearly a value in science. It is important to doubt and that the doubt is not a fearful thing, but a thing of great value.

The beauty that is there is also available for me, too. But I see a deeper beauty that isn't so readily available to others.... I don't see how studying a flower ever detracts from its beauty. It only adds