最重要的是能够像经济学家一样思考，透过这个视角看世界。
The most important thing is to be able to think like an economist, to see the world through that lens.
The question is not whether the thing exists， but whether it has any essence which is capable of existence without us.
Mathematics advances not by the efforts of individuals alone but through the collective work of generations.
错误的生活无法正确地过。
It is in your moments of decision that your destiny is shaped.