One thing I do ask you: If you are not doing it, if you don't participate, simply just keep quiet.

我对你们的一个要求是：,如果你不做，不参与的同学，请保持安静。

哈佛公开课 - 幸福课课程节选

The first step to insight is to ask questions like why do things fall down and not up?

起初的洞察力是问问题,为什么物体坠地而不是上升？

耶鲁公开课 - 心理学导论课程节选

Ask not what you can do for your country, etc.

不要问你能为你的国家做些什么这样的问题。

麻省理工公开课 - 固态化学导论课程节选

Now we can ask, not what did you do, but what should you do?

我们不讨论你做了些什么,而讨论你应该怎么做

耶鲁公开课 - 博弈论课程节选