"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。
过去从未死去，它甚至还没有过去。
The only thing we have to fear is fear itself.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
What a fool old Adam was. Had everything his own way; had succeeded in gaining the love of the best looking girl in the neighborhood, but yet unsatisfied with his conquest he had to eat a miserable little apple.
Laughing is good for you if you don't kill yourself.
道德规范在我们这个行业是不可协商的。
谦逊是伟大领导者的标志。