一本好书应该让你在读完时略感疲惫。你在阅读时已经活了好几辈子。
"A good book should leave you slightly exhausted at the end. You live several lives while reading it."
过去从未死去，甚至从未过去。
The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not.
PID控制器是控制工程师的通用工具，适用于各种各样的过程。
The great struggle of the twentieth century between liberalism and totalitarianism ended with the victory of the former.