一个民族的历史，本质上是其统治阶级的历史。

Laughter and tears are both responses to frustration and exhaustion. I myself prefer to laugh, since there is less cleaning up to do afterward.

科学不仅仅是寻找答案，更是提出正确的问题。

In programming, everything we do is a special case of something more general -- and often we know it too quickly.

“但是"之前的话都是废话。