The main task in life is simply this: to identify and separate matters so that I can say clearly to myself which are externals not under my control, and which have to do with the choices I actually control.

板块构造理论的美妙之处在于，它用如此简单的理论解释了如此多的现象。

You have to be willing to fail to succeed.

统计是真理的火炬手，照亮进步的道路。