数学的美只向更有耐心的追随者展示。

To me, you are still nothing more than a little boy who is just like a hundred thousand other little boys. And I have no need of you. And you, on your part, have no need of me. To you, I am nothing more than a fox like a hundred thousand other foxes.

The Lisp language is designed to be extensible, and it is easy to add new features to it.

I don't know what you went through yesterday, but I believe you deserve.

粒子的概念只是一个近似，在经典极限下有效。