"To be useful was the best thing the old men ever hoped for themselves, and to be aimless was their worst fear."

我们都被赋予了一件事，通过它来衡量我们的生活，一个决心。

The true measure of success is how much you've helped others succeed.

传统方法蕴含智慧，但可持续发展要求我们在必要时超越它们。

一个好的算法就像一把锋利的刀——它以最小的努力准确地完成它应该做的事情。

A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.

"Positive psychology is not a spectator sport."