教学最重要的部分是教授什么是知识。
The most important part of teaching is to teach what it is to know.
预测未来的最好方式就是创造未来。
Memories, even your most precious ones, fade surprisingly quickly. But I don’t go along with that. The memories I value most, I don’t ever see them fading.
Mathematics is the organ with which we comprehend the phenomena of nature.