A good world needs knowledge， kindliness， and courage； it does not need a regretful hankering after the past or a fettering of the free intelligence by the words uttered long ago by ignorant men.
因果推断不仅仅是统计显著性；它关乎理解数字背后的机制。
La literatura es el arte de mentir para decir la verdad.
The more successful I become, the more I need a man who is not intimidated by me.