对付一个不自由的世界唯一的方法就是变得如此绝对自由，以至于你的存在本身就是一种反叛。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
The heart is a fragile thing, easily broken but also capable of incredible resilience.
一个问题如果在计算机上可以快速解决，那么它属于P类问题；如果一个解可以快速验证，那么它属于NP类问题。
任何需要手册才能工作的产品都是坏的。
The best quarries leave no scars, only responsible transitions.