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

Science is a way for us to not fool ourselves.

Victory usually goes to those green enough to underestimate the monumental hurdles they are facing.

Nature does not care what we call it, she just keeps on doing it.

If you're doing an experiment, you should report everything that you think might make it invalid - not only what you think is right about it; other causes that could possibly explain your results; and things you thought of that you've eliminated by some other experiment, and how they worked -to make sure the other fellow can tell they have been eliminated.

I don't believe I can really do without teaching. The reason is, I have to have something so that when I don't have any ideas and I'm not getting anywhere, I can say to myself, "At least I'm living; at least I'm doing something. I'm making some contribution." It's just psychological.

Start out understanding religion by saying everything is possibly wrong... As soon as you do that, you start sliding down an edge which is hard to recover from.