The development of science cannot be separated from innovation and cooperation.

那些善于学习的人们，应当能够求得其学习的甚解，了解之所以这样的缘故，不应当只求得背诵文章，看看便可以了。

"Language is not just a tool for communication, but a weapon of precision."

Good econometrics is like good carpentry—it's all about using the right tool for the job.

如果你不相信自己，别人也不会相信你。

There is no such thing as great wisdom in the world, just as there is no such thing as talent. What exists is triviality. If you keep doing repetitive things, you become an expert; if you do repetitive things with special focus, you become a master.