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.

我不认为有什么极限。

逻辑学研究不仅仅是关于形式系统，而是理解理性思维的基本结构。

In investing, you get what you don’t pay for.