朗费罗幽默的秘密源泉并不是欢乐而是悲伤。天堂里没有幽默。

Quality means doing it right when no one is looking.

You should be doing something that you're passionate about and that you think is really important.

The first step in the art of cutting metals is to find a man who has the necessary skill and experience to do the work.

一个通过征税求繁荣的国家就好像一个缩在桶里想把自己提起来的人。