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.
学习Lisp是值得的，因为当你最终理解它时，你将获得深刻的启蒙体验；这种体验将使你在余下的日子里成为一个更好的程序员，即使你实际上并不经常使用Lisp本身。
We are constantly refining our models to improve performance.
The balance between economic growth and environmental responsibility is the defining challenge of our time.
我还没有把我所见所闻的一半告诉你们。
To be human is to be guilty.
When buying a garden hose， an extension cord， or a ladder， get one substantially longer than you think you need. It’ll be the right size.
God is at home, it's we who have gone out for a walk.