He or she is not perfectly beautiful, but suddenly I start thinking about the nature of beauty itself.

他或她并不是无瑕疵的漂亮,但是我马上会想到美丽本身

耶鲁公开课 - 死亡课程节选

You always have to get worried in history when people start talking about how human beings or human behavior is rooted in nature.

当你了解那段历史中的人们在讨论,某些人类或者人类行为是天性使然时,你会为此担忧

耶鲁公开课 - 美国内战与重建课程节选

In order for a more or less just society to remind me of justice itself, so that I can start thinking about the nature of justice itself, I have to somehow have already been acquainted with perfect justice.

如果一个较为正义的社会,能让我想到公正本身,能让我思考公正的本质,我起码需要,对完美的正义有所认识

耶鲁公开课 - 死亡课程节选

I'm going to start by talking about a very specific and interesting form of double stranded DNA called a plasmid and plasmids occur in nature.

我要从一种十分特殊,并有趣的双链DNA开始,这种双链DNA被称为质粒,它在自然界就存在

耶鲁公开课 - 生物医学工程探索课程节选