The value of an economic model lies in its ability to explain and predict.

决定性的十年：为什么你的二十岁很重要——以及如何充分利用它们。

"The most successful companies are those that are able to adapt to changing market conditions."

"To live is to suffer, to survive is to find some meaning in the suffering."

晏子春秋

过去是一个外国；他们在那里做不同的事情。