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.

It's amazing how many people even today use a computer to do something you can do with a pencil and paper in less time.

There’s so much distance between the fundamental rules and the final phenomenon, that it’s almost unbelievable that the final variety of phenomenon can come from such a steady operation of such simple rules.

It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

Know how to solve every problem that has been solved.

But see that the imagination of nature is far, far greater than the imagination of man.