劳动经济学从根本上讲是理解人们的选择和约束。
Labor economics is fundamentally about understanding people’s choices and constraints.
We've been warned against offering the people of this nation false hope. But in the unlikely story that is America, there has never been anything false about hope.
"If you can’t fly, then run. If you can’t run, then walk. If you can’t walk, then crawl. But whatever you do, you have to keep moving forward."
学习新编程语言的最好方法是用它编写程序。