And there is a very big difference between these two simplicities, even though on the face of it, they may at times look similar.

这两种简单性之间有很大的区别，尽管乍看起来，他们有时也许是相似的。

哈佛公开课 - 幸福课课程节选

Here we have two of our T.A.'s, actually these are the two head T.A.'s, and I want you to face forward so you don't see what I'm doing.

我们的两个助教在这里,事实上是两个助教主管,把脸朝前,不要看到我的动作

耶鲁公开课 - 博弈论课程节选

Or Roosevelt, after World War Two, talking about our humility as a nation in the face of the sacrifice of our soldiers, or Lincoln, or Washington, These are people who understood that they were small parts of something much larger.

第二次世界大战之后，罗斯福总统，也讲过一个国家的谦逊,面对战士的牺牲，无论是林肯还是华盛顿，这些人都很请楚,他们都只是很渺小的一部分。

普林斯顿公开课 - 国际座谈会课程节选