最高深的道理往往是最简单的,但演化出的变化却极其复杂。
The greatest virtue in life is real courage that knows how to face facts and live beyond them.
The world is a book, and those who do not travel read only one page.
入门统计学课本一开始讲的几个要点之一,就是相关性不是因果性。这也是最先被忘记的要点之一。