投资者的主要问题——甚至是他最大的敌人——可能是他自己。
The investor's chief problem—and even his worst enemy—is likely to be himself.
卡塞尔文献展是举向艺术世界的一面镜子。
动态规划理论基于最优性原理，该原理指出，无论初始状态和初始决策如何，剩余决策必须构成关于第一个决策所导致状态的最优策略。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
【释义】：人在幼年时精神专注，成年后心思分散，教育要趁早，别错过时机。
The past is not dead, it is not even past.