我相信建筑是一门能够改变社会的学科。

善恶之间的界限常常是模糊的。

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.

观众完成了艺术作品。