"In observational studies, we often have to rely on assumptions that are not directly testable."
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。
The best way to learn is to teach.
除非我觉得自己能成为最好的，否则我不会做任何事。
On vacation go to the most remote place on your itinerary first， bypassing the cities. You‘ll maximize the shock of otherness in the remote， and then later you’ll welcome the familiar comforts of a city on the way back.
我们生产的每一桶石油都应着眼于最小化我们的足迹。
Life is short. Stunt hard.
你必须相信自己，即使别人不相信你。
建筑必须要有能够打动人们心灵的力量。
A writer is selected by his subject—his subject being the consciousness of his own era.