Every character in a novel is a kind of experiment in human nature.

理解计算的极限需要深入研究支撑算法复杂性的数学基础。

量入为出，储蓄投资。学习你需要学习的东西。

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.

我的人生就是一场即兴演出。