世界上的事情,最忌讳的就是个十全十美,你看那天上的月亮,一旦圆满了,马上就要亏厌;树上的果子,一旦熟透了,马上就要坠落。凡事总要稍留欠缺,才能持恒。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Nature, to be commanded, must be obeyed.
对任何模型的最大期望是它能提供一个对现实有用的近似。