People always say that you can't please everybody. I think that's a cop-out. I think if you work hard enough, you can please anybody.

世界的历史是用山脉的语言书写的。

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.

书本身不是目的，它是一种唤起的手段。