领导力就是做出今天艰难的决定，造福下一代。
Leadership is about making tough decisions today that will benefit the next generation.
At the risk of seeming ridiculous, let me say that the true revolutionary is guided by a great feeling of love.
唯一真正的自由是想象的自由。
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.
相信生活，它给人的教益比任何一本书籍都好。
每个人犯了错误，都自称是经验。
自守表示的研究是数学抽象深度的反映。