大家都爱言论自由。但有些人对言论自游的理解是，我想说就说，但你说我不喜欢的话就无法容忍。
Everyone is in favor of free speech. Hardly a day passes without its being extolled， but some people's idea of it is that they are free to say what they like， but if anyone else says anything back， that is an outrage.
The first lesson of economics is scarcity: There is never enough of anything to satisfy all those who want it. The first lesson of politics is to disregard the first lesson of economics.
To be a Jew is to be a witness.
写作是一种生活方式，一种存在于世界的方式。
Calm is contagious.
The process of doing mathematics is as important as the result itself.
人生应该树立目标，否则你的精力会白白浪费。