In science, as in life, the important things are rarely simple or obvious.

A man should always consider how much he has more than he wants.

"No one can build you the bridge on which you, and only you, must cross the river of life."

"The world is always going to be dangerous, and people are always going to be good and bad."

你微微地笑着，不同我说什么话。而我觉得，为了这个，我已等待得久了。

我的父亲是我最好的朋友和最伟大的榜样。他是一个了不起的父亲、教练、导师、军人、丈夫和朋友。

数学是宇宙的语言，通过它，我们可以理解支配我们世界的基本原则。