相关系数的可能误差不是可以从第一原理推导出来的东西，而是必须通过经验找到的。
不以法推行法度，则国事没有常规，办事的时候就没有规矩可循；法度不用法的手段推行，则政令不能贯彻。
Every artist is a child of his time, but the great ones are also the parents of the future.
The world is full of magic things, patiently waiting for our senses to grow sharper.
我相信开心的女孩子才是最漂亮的。
In a state, the liberty of one citizen is the liberty of all.
The best way to help someone is to empower them to help themselves.