计算机科学中的挑战不仅仅是解决问题，而是理解为什么它们首先是问题。

We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.

永远不要把动作和行动混为一谈。

你越努力，就越幸运。

In the act of reading, we find pieces of ourselves scattered across the pages.