One of the ways of stopping science would be only to do experiments in the region where you know the law. But experimenters search most diligently, and with the greatest effort, in exactly those places where it seems most likely that we can prove our theories wrong. In other words, we are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.

The problem of creating something new, but which is consistent with everything which has been seen before, is one of extreme difficulty.

Physicists like to think that all you have to do is say, these are the conditions, now what happens next?

The unanswerable mysteries... the attitude that all is uncertain... to summarize it - the humility of the intellect.

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

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

Why make yourself miserable saying things like, "Why do we have such bad luck? What has God done to us? What have we done to deserve this?" - all of which, if you understand reality and take it completely into your heart, are irrelevant and unsolvable. They are just things that nobody can know. Your situation is just an accident of life.