抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。

Money is concerned only with what is common to all: it asks for the exchange value, it reduces all quality and individuality to the question: How much?

解读：区分事务可控性，对可控之事精细谋划，预防风险；对不可控之事，忧愁无用，不如乐观豁达面对，合理调配心态与精力。

In mining, efficiency and environmental care must go hand in hand.

We are all ready to be savage in some cause. The difference between a good man and a bad one is the choice of the cause.

投资者应避免试图把握市场时机；这是一个失败的游戏。