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

"The best films are those that dare to confront the uncomfortable truths of our existence."

当安全与生产发生冲突时，安全永远是赢家。

Success comes from persistence and hard work.

We have really everything in common with America nowadays, except, of course, language.

成功没有捷径，只有脚踏实地才能走得更远。