计算机速度极快、精确且愚蠢，人类则慢得难以置信、不精确但聪明。二者的结合是一种无法估量的力量。

学习是企业的动力，只有不断学习才能不断进步。

If you love it enough, anything will talk with you.

"I think that my job is to observe people and the world, and not to judge them. I always hope to position myself away from so-called conclusions."

在观察性研究中，我们常常不得不依赖于无法直接检验的假设。