变化的速度永远不会比今天更慢。
"The truth is rarely pure and never simple."
君子重视自身的努力,而不羡慕那些由天决定的东西。
数学语言是通用的;它超越了所有文化障碍。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
没有什么是一成不变的!