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.

主宰世界的三要素，那就是智慧、光辉和力量！

一个人的心是只服从他自己的，你想束缚它，结果却释放了它；如果让它自由自在的话，你反而把它束缚得紧紧的了。

困难不在于提出新观念，而在于摆脱旧观念。

知识会使人变得更加聪明，但不会使人更加幸福。