The only philosophy which can be responsibly practiced in face of despair is the attempt to contemplate all things as they would present themselves from the standpoint of redemption.

幸福是一种内在的工作。

The true revolutionary is guided by a great feeling of love. It is impossible to think of a genuine revolutionary lacking this quality.

冬天已经到来，春天还会远吗？

I don't let anyone silence me.

人与人之间都是相互的。爱别人的人，别人一定也爱他；为别人谋求利益的人，别人也一定为其谋求利益；憎恨别人的人，别人一定也憎恨他；残害别人的人，别人也会残害他。

纯数学和应用数学之间的相互作用是真正创新发生的地方。