我们应该始终遵循表象的道路，并暂时不下判断。
History is not just the story of bad people doing bad things. It's also the story of good people doing nothing.
The highest purpose is to have no purpose at all. This puts one in accord with nature in her manner of operation.
The highest art is to conceal art.
I'm a fighter, I don't give up.
The best way to learn econometrics is by doing—working with real data and real problems.