靠正道谋生的人都尽心尽力去做些有益于他人和世界的事，这使得世人都离不开他，老天爷自然也离不得他。如此做法才是一个人安身立命的最好途径。

数学的语言是普遍的，超越了文化和语言的障碍。

The very shaping of history now outpaces the ability of men to orient themselves in accordance with cherished values. And which values? Even when they do not panic, men often sense that older ways of feeling and thinking have collapsed and that newer beginnings are ambiguous to the point of moral stasis.

I think the only way to conquer fear is to tell it to go to hell.

Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one.

我要在宇宙中留下痕迹。