So that means that we assume that it's better to have limbs and functioning limbs than not to have them.

这意味着，我们默认，有正常的四肢的生活,要比没有四肢的生活好过。

普林斯顿公开课 - 人性课程节选

Rather, by looking at extreme cases, they can help us best understand normal life.

相反,研究这些极端的例子,可以帮助我们理解正常的生活

耶鲁公开课 - 心理学导论课程节选

But when you go to restaurants or people buy steaks you just don't see anything that small, and so the serving sizes are multiples of what might be typical.

但当人们去餐馆或者买牛排的时候,不会看见这么小的肉,所以我们生活中的份量是正常大小的几倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选