I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

The world is a book, and those who do not travel read only one page.

海洋养育了数百万人，我们的职责是确保它能养育更多人，而不会被耗尽。

人类似乎有这样的倾向，建立一项规则叫别人遵守，同时又极力使自己成为例外，不受它的约束。

出自《抱朴子·备阙》。使用弹弓打鸟，泥丸比千金更适用。