市场不能替代政府，政府也不能替代市场。

"Art is the only way to run away without leaving home."

A proof that P = NP would have profound implications for mathematics, cryptography, and algorithm design.

Education is an admirable thing. But it is well to remember from time to time that nothing that is worth knowing can be taught.

我总是努力比昨天的自己更好。