The ultimate test of any economic theory is whether it improves real-world decisions.

The real challenge in computer science is not to write programs, but to understand the nature of computation.

外交是实现国家利益的一种手段，但也要尊重和平、公正和法治的原则。

"Writing is a way to make sense of our place in history."

We are all of us, in our different ways, seeking to escape the trap of our own minds.