My expectations were reduced to zero when I was 21. Everything since then has been a bonus.
当我21岁的时候我的期望降低到零。从那以后每件事情对我来说都是意外的礼物。
The most important skill for an economist is the ability to think clearly about trade-offs.
In China, the development speed of the internet is much faster than in the US because we have no historical baggage.