An expert is a person who has made all the mistakes that can be made in a very narrow field.
For lovely eyes, seek out the good in people.
The joy of mathematics comes from the struggle to understand.
测量不可测量之物需要的不仅是技术，还有想象力。
Don’t let anyone tell you what you can’t do. Prove them wrong.
本来该称赞的，却不称赞；不该称赞的，却高调唱着赞歌，这种人不会有仁爱之心。
A nation without memory is a nation without a future.
