There is no more important rule of conduct in the world than this: attach yourself as much as you can to people who are abler than you and yet not so very different that you cannot understand them.

Man is always partial and is quite right to be. Even impartiality is partial.

If we make a couple of discoveries here and there we need not believe things will go on like this for ever.... Just as we hit water when we dig in the earth, s…

I have remarked very clearly that I am often of one opinion when I am lying down and of another when I am standing up.

To live for a time close to great minds is the best kind of education.

But there are very few people who can hold me in a way, to look at them and talk to me. And make me cry, and to talk to me about my life. And also to say, get …

I am often asked why I don't pass on to young people what I have accomplished over the years. Actually, I would like very much to do so. Ninety-nine percent of…