生命太短暂，不要在早晨醒来时带着遗憾。
I want to liberate America from fear. I want people to be afraid of the things that are really scary, like war and famine, not their neighbor because he has a different religion.
每一个发现都是我们宇宙拼图的一块。
In every line, there is a hidden truth.
The best way to understand labor markets is to look at real-world data, not just theoretical models.