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.

It turns out that all life is interconnected with all other life.

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.

It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions.

The real problem in speech is not precise language. The problem is clear language.

I couldn't claim that I was smarter than sixty-five other guys--but the average of sixty-five other guys, certainly!

People may come along and argue philosophically that they like one better than another; but we have learned from much experience that all philosophical intuitions about what nature is going to do fail.