人们并不懒惰。他们只是有无力的目标——也就是说，目标没有激励他们。

"In the end, we will remember not the words of our enemies, but the silence of our friends."

A good algorithm is like a sharp knife—it does exactly what it is supposed to do with a minimum of effort.

我永远不想回头看时说我可以做得更多。