The theoretical broadening which comes from having many humanities subjects on the campus is offset by the general dopiness of the people who study these things.

You see, I get such fun out of thinking that I don't want to destroy this most pleasant machine that makes life such a big kick.

We are not to tell nature what she’s gotta be... She's always got better imagination than we have.

When you get as old as I am, you start to realize that you've told most of the good stuff you know to other people anyway.

Any schemes - such as 'think of symmetry laws', or 'put the information in mathematical form', or 'guess equations'- are known to everybody now, and they are all tried all the time. When you are stuck, the answer cannot be one of these, because you will have tried these right away...The next scheme, the new discovery, is going to be made in a completely different way.

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

When a scientist doesn't know the answer to a problem, he is ignorant. When he has a hunch as to what the result is, he is uncertain. And when he is pretty darn sure of what the result is going to be, he is in some doubt.