Others carried signs that read: "Change Takes Courage."

VOA: standard.2010.03.21

To do things differently very often takes courage.

经常用不同的方式做事需要勇气。

哈佛公开课 - 幸福课课程节选

Arsenic is like phosphorus. He takes those two facts, plus the courage to leave blanks, and this is what he gives us.

砷和磷很像，他记住了这两点，在加上敢于留空的勇气，这就是他给我们的。

麻省理工公开课 - 固态化学导论课程节选