译文：纵览历史，凡是贤明的国和家，成功源于勤俭，衰败起于奢华。赏析：节俭不是吝啬，是对钱财的合理利用。不管何时，我们都要有忧患意识，保持俭朴的作风。

"The only thing worse than being talked about is not being talked about."

"Writing is a way of making sense of the world, of finding your place in it."

在数学领域，每个问题都是发现新事物的机会。

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

谦逊是科学家所能拥有的最大美德。