Check out not to become a man or woman of achievement, but instead seek to become a particular person of price.

A brave man, whose only fault was being a woman.

I consider it important, indeed urgently necessary, for intellectual workers to get together, both to protect their own economic status and, also, generally speaking, to secure their influence in the political field.

Every serious scientific worker is painfully conscious of this involuntary relegation to an ever-narrowing sphere of knowledge, which threatens to deprive the investigator of his broad horizon and degrades him to the level of a mechanic.

This is too difficult for a mathematician. It takes a philosopher. The hardest thing in the world to understand is the income tax.

If only I had known, I should have become a watchmaker.

The wonder of nature does not become smaller because one cannot measure it by the standards of human moral and human aims.