I object to people running down the future. I am going to live all the rest of my life there.

Education is man's going forward from cocksure ignorance to thoughtful uncertainty.Where there is an open mind there will always be a frontier.

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.

If I have had any success, it's due to luck, but I notice the harder I work, the luckier I get.

If you want to kill any idea in the world, get a committee working on it.

In America we can say what we think, and even if we can't think, we can say it anyhow.

Modern psychology teaches that experience is not merely the best teacher, but the only possible teacher.. There is no war between theory and practice. The most valuable experience demands both, and the theory should supplement the practice and not precede it.