People are very open-minded about new things - as long as they're exactly like the old ones.

We are just in the kindergarten of uncovering things; there is no downcurve in science.

Whenever you look at a piece of work and you think the fellow was crazy, then you want to pay some attention to that. One of you is likely to be, and you had better find out which one it is. It makes an awful lot of difference.

Great steps in human progress are made by things that don't work the way philosophy thought they should. If things always worked the way they should, you could write the history of the world from now on. But they don't, and it is those deviations from the normal that make human progress.

No one would have crossed the ocean if he could have gotten off the ship in the storm.

High achievement always takes place in the framework of high expectation.

Do not bring me your successes; they weaken me. Bring me your problems; they strengthen me.