The tragedy of life is not that the beautiful things die young, but that they grow old and mean.
Never stop learning because life never stops teaching.
人类的灵魂是脆弱的东西。
复杂性理论告诉我们，并非所有问题都是平等的；有些问题本质上比其他问题更难。
资本支出的纪律性将决定这个行业的赢家和输家。