一只眼睛的人可以用来看水平仪，有毒的石头可以用来治疗痈疽。

那下面发生的事情，跟他们说的完全不一样。

"The great advantage of being a writer is that you can spy on people. You're there, listening to every word, but part of you is observing. Everything is useful to a writer, every scrap, even the longest and most boring of luncheon parties."

The synergy between theoretical computer science and applied mathematics has led to breakthroughs that were once thought impossible.

文学是保持人类火焰不灭的一种方式。