To teach mathematics is to inspire the next generation of thinkers and problem solvers.

The only way to tell the truth is to speak with kindness. Only the words of a loving man can be heard.

定理是数学的里程碑。

If something is too hard, we move on to something else.What could be more simpler than that?

经济发展的关键不仅在于价格正确，更在于制度正确。

当还不会演戏时我被叫去演戏，当还不会唱歌时我被要求唱“Funny Face”，当还不会跳舞时我被要求与弗雷德·阿斯坦跳舞——所有的这些的事我都从来没有准备过。所以我非常努力地去适应学习这些事物。