数学中最深刻的洞见往往来自意想不到的类比。

There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best.

The dead are our silent collaborators in the quest for knowledge.

The psychologist must be a neutral observer.

Live truth instead of professing it.

如果战略达到了目标，它就是有用的；如果战略实现了目标，它就是成功的。