我知道我是聪明的，因为我自知无知。

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.

人生就像一盒各式各样的巧克力，你永远不知道下一块将会是哪种。

快乐不是现成的东西。它来自你自己的行动。