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劳动经济学从根本上讲是理解人们的选择和约束。
Labor economics is fundamentally about understanding people’s choices and constraints.
We should always follow the path of appearances and withhold judgment.
你必须度过一些糟糕的日子才能赢得人生中最美好的日子。
The key is to set realistic customer expectations, and then not to just meet them, but to exceed them — preferably in unexpected and helpful ways.