How do you know, not only that it didn't happen to you last night?

你怎么知道，只是昨晚没有发生？

耶鲁公开课 - 死亡课程节选

Not only is it inevitable that you're going to die; not only do some people live longer than others, you don't know how much more time you've got.

你会死去这不仅是不可避免;,不仅有些人活得比另一些人久，你也不知道自己还剩下多少时间。

耶鲁公开课 - 死亡课程节选

Well, the only way you know is to do studies-- and we'll talk about how these are done in the next class-- linking dietary behavior, food intake with health.

了解这些的唯一方法是做研究,而在下一节课,我们会谈论具体过程,联系饮食习惯,食物摄入与健康

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I think what makes a difference is not only do you, yourselves, know better how to play this game now, but you also know that everybody around you knows better how to play the game.

我觉得因为不仅你们自己,玩这个数字游戏玩得更好了,你们也了解到周围的人,也玩得更高了

耶鲁公开课 - 博弈论课程节选

What I was going to say is that you could, at least theoretically, strike with your spear in a overhand manner or you could strike with it in an underhand manner, the only thing is I don't know how you do that underhand when you're in the middle of a phalanx.

我要说的是,士兵们能够,至少从理论上来说,可以自上而下地刺矛,也可以这样自下而上地刺矛,我不太清楚在方阵中,士兵们怎么能够自下而上地刺矛

耶鲁公开课 - 古希腊历史简介课程节选