Every time a coal plant closes, a piece of America's heart closes with it.

打字机要是敲得有感情，并不比你的姐妹或者亲戚弹奏钢琴来的扰人。

The more you dwell in the past, the less you prepare for the future.

The value or worth of a man is, as of all other things, his price; that is to say, so much as would be given for the use of his power.

书是一次跨越时间的对话。

To do mathematics is to explore a universe of ideas, where the only limit is your imagination.

客户的声音是任何企业中最重要声音。

在向埃及的远征中，拿破仑下达过这样的一个命令。