我们要建立一个不用钱的社会!
The stories we tell about ourselves are as important as the lives we lead.
数学不是一项观赏性运动;要理解它,必须积极参与其中。
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.