数学家的工作永无止境；总有新的问题要问，新的谜题要解。
A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.
真正的朋友，不是在一起有聊不完的话题，而是在一起，就算不说话，也不会感到尴尬。
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.
Get rich or die tryin'.
量子力学不仅仅是一个理论，它是一个从根本上改变了我们对现实理解的框架。