计算的研究不仅仅是关于机器，而是关于思维和逻辑的本质。
The study of computation is not just about machines, but about the very nature of thought and logic.
事情在最得意时要防乐极生悲，话说到最忘形时要防言中有失。
A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.
所谓经验，乃是人们为其错误贴上的标签。