The journey of a thousand miles begins with a single step.

事实是，我有一半的时间不知道自己在做什么，但我自信地去做。

Emotions are adaptations that have evolved to coordinate other psychological mechanisms in solving specific adaptive problems.

写自己就是在谈论世界。

检验一个经济学家是否优秀的标准，是看他能否比别人更好地解释过去。