We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.

There is one simplification at least. Electrons behave ... in exactly the same way as photons; they are both screwy, but in exactly in the same way.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

Have no respect whatsoever for authority; forget who said it and instead look what he starts with, where he ends up, and ask yourself, "Is it reasonable?"

Another thing I must point out is that you cannot prove a vague theory wrong.

All the time you're saying to yourself, 'I could do that, but I won't,'--which is just another way of saying that you can't.

All we know so far is what doesn't work.