Sometimes I do wonder what college would have been like. But I made my decision..

国际政治是一项残酷而危险的业务，期望国家按照道德原则行事是愚蠢的。

It is the absence of facts that frightens people: the gap you open, into which they pour their fears, fantasies, desires.

目的的概念在行为的科学解释中没有位置。

自由不是选择，而是创造。