The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

精神生活是一系列适应性的实验。

"The hawk was a mirror in which I saw myself reflected."

学习数学的唯一方法就是做数学。

A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between proofs and the best mathematician can notice analogies between theories.

言论自由是自由的重要堡垒；它们共同繁荣和共同消亡。