数学的力量在于它的抽象性，使我们能够看到不立即显现的模式和联系。

Capitalism is the legalized version of greed.

行为法则可以从基本的生理原则中推导出来。

知识分子中最大的一些身份错乱就是他们很难记得住自己不是上帝。

The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.