It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.

Although it is uncertain, it is necessary to make science useful. Science is only useful if it tells you about some experiment that has not been done; it is not good if it only tells you what just went on.

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.

There was a time when the newspapers said that only twelve men understood the theory of relativity. I do not believe there ever was such a time ... On the other hand, I think I can safely say that nobody understands quantum mechanics.

People often think I'm a faker, but I'm usually honest, in a certain way--in such a way that often nobody believes me!

As you know, a theory in physics is not useful unless it is able to predict underlined effects which we would otherwise expect.

Science is what we have learned about how to keep from fooling ourselves.