To the man with only a hammer, every problem looks like a nail.

科学问题有意识的解决给我们提出的最直接且在某种意义上最重要的问题，是对结果的准确阐述。

"The difference between correlation and causation is fundamental in empirical work."

文学应该让人不安，应该提出问题，而不是给出答案。

If the job has been correctly done when a common stock is purchased, the time to sell it is—almost never.