Lisp语言被设计成可扩展的，很容易为其添加新功能。
The Lisp language is designed to be extensible, and it is easy to add new features to it.
The primary rules of obligation are those that require or forbid certain actions.
真正的颠覆来自于在消费者表达需求之前就理解它们。
未来汽车的价值，软件将占40%以上。
Hope is not an emotion, but a choice.