"The study of mind must be grounded in biology."

International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.

I decided, very early on, just to accept life unconditionally; I never expected it to do anything special for me, yet I seemed to accomplish far more than I had ever hoped. Most of the time it just happened to me without my ever seeking it.

一个最重大的错误，是以动机而不是结果来判断政策的得失。