The merit of Marx is that he suddenly produces a qualitative change in the history of social thought. He interprets history, understands its dynamic, predicts the future, but in addition to predicting it, he expresses a revolutionary concept: the world must not only be interpreted, it must be transformed.

古代著书立说的人，都是有所为而发的。

计划你的工作，然后按计划行事。

The golden rule is that there are no golden rules.

能源安全就是国家安全。

我们拥有的最大资源是人类的聪明才智。