The difference between correlation and causation is not just academic—it can have profound policy implications.

有时你必须撒谎。但对自己，你必须永远诚实。

The difference between ordinary and extraordinary is that little extra.

【释义】世界上一切都是次要的，只有读书最重要、最高尚。

模仿是最稳妥的创新。