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。
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.
I think the best actors are the ones who are willing to be vulnerable.
Mathematics is the art of asking the right questions and then finding their answers.
唯一的善，是知识；唯一的恶，是无知。
The internet is not just a technology, it's a way of thinking.
You can’t go back and change the beginning, but you can start where you are and change the ending.