The best way to understand labor markets is to look at real-world data, not just theoretical models.

人类不仅是一种地质因素，而且可能是所有地质力量中最强大和最普遍的。

The reality is: sometimes you lose. And you're never too good to lose. You're never too big to lose. You're never too smart to lose. It happens.

没有人值得你流泪，值得让你这么做的人不会让你哭泣。

你不必完美也能很了不起。

科学是一段旅程，每一步都很重要。

数学的本质在于其自由性。

You are not the opinion of somebody who doesn't know you.