In fact the total amount that a physicist knows is very little. He has only to remember the rules to get him from one place to another and he is all right.

I'd hate to die twice. It's so boring.

To develop working ideas efficiently, I try to fail as fast as I can.

The thing that doesn't fit is the thing that is most interesting.

When the problem [quantum chromodynamics] is finally solved, it will all be by imagination. Then there will be some big thing about the great way it was done. But it's simple -it will all be by imagination, and persistence.

What I cannot create, I do not understand.

The test of all knowledge is experiment. Experiment is the sole judge of scientific truth.