Today's brains are yesterday's mashed potatoes.

Victory usually goes to those green enough to underestimate the monumental hurdles they are facing.

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

I think Nature's imagination is so much greater than man's, she's never gonna let us relax!

If I say [electrons] behave like particles I give the wrong impression; also if I say they behave like waves. They behave in their own inimitable way, which technically could be called a quantum mechanical way. They behave in a way that is like nothing that you have seen before.

[B]eyond poverty, beyond the point that the material needs are reasonably satisfied, only from within is peace.

Some things that satisfy the rules of algebra can be interesting to mathematicians even though they don't always represent a real situation.