Now Descartes, you remember, in his Meditations begins by asking a series of questions about how we can know anything, and one of the skeptical questions he asks is, "Well, might I not be crazy?"

大家应该记得，在《沉思录》的开头，笛卡尔问了一系列,关于我们如何知道一切的问题，其中的一个问题是，我可能疯了？

耶鲁公开课 - 文学理论导论课程节选

He might be a scientist and know all sorts of things about how light works.

他可能是个科学家,通晓光的原理

耶鲁公开课 - 死亡课程节选

So, he went to where people thought Troy might be and he began digging there, and before you know it, he discovered a mound filled with cities, which he believed was Troy.

因此,他来到人们认为的特洛伊城的所在地,然后,开始挖掘,然后你们知道的,他发现了土堆之中的城市,他相信那就是特洛伊城

耶鲁公开课 - 古希腊历史简介课程节选

I might not know what key he's in.

我可能不知道他所使用的调号。

耶鲁公开课 - 聆听音乐课程节选