The key to e-commerce success is understanding customer needs and delivering beyond their expectations.

在电影的世界里，每一个细节都有其存在的意义，它们共同构成了一个完整的故事。

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.