工具变量的美妙之处在于它们让我们以新的视角看世界。

The most important thing in the programming language is the name. A language will not succeed without a good name. I have recently invented a very good name and now I am looking for a suitable language.

The eleventh commandment was "Thou Shalt Compute" or "Thou Shalt Not Compute" - I forget which.

You can’t go back and change the beginning, but you can start where you are and change the ending.

"The truth is rarely pure and never simple."

今天投资创新，以确保明天的相关性。