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.

我的艺术就是我的灵魂。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

解释：处在有利的地位上想到道义，处在困难之中想到保持纯正。

It’s not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.