一个好的侦探知道，每个答案都会引出另一个问题。

Rule of 7 in research. You can find out anything if you are willing to go seven levels. If the first source you ask doesn’t know， ask them who you should ask next， and so on down the line. If you are willing to go to the 7th source， you’ll almost always get your answer.

Technology can be our greatest ally in ensuring sustainable fisheries, but only if we use it wisely.

发现的关键不仅在于我们找到的答案，还在于我们敢于提出的问题。

——1945年4月接到希特勒已死的消息时说

译文：与其在生病后去求取药物，不如在生病前做好自我的预防。赏析：任何事都要提前谋划，防患未然，事到临头才不会手忙脚乱。平时不烧香，临时抱佛脚是没有用的。