I don’t know what the market is going to do. I just try to buy things that are cheap.

Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.

投资农民教育能带来最高的回报。

Understanding is the first step to acceptance, and only with acceptance can there be recovery.

绝不能为了速度或成本而牺牲质量。