【释义】凯根打破童年决定论：快乐童年未必护航成年，而经历过黑暗的孩子反而可能锻造韧性。

The wild doesn’t care who you are. It only cares if you can survive.

政事分散在地方，但大权集中在中央

The value and utility of any experiment are determined by the fitness of the material to the purpose for which it is used.

理性预期假说并不意味着人们能够完美地预测未来。