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處于逆境，思想要開拓放達(dá)，奮發(fā)圖強(qiáng)；處于順境，思想要警覺收斂，約束自身。

The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

低市盈率策略已經(jīng)為我工作了30年。