If the rate of population growth of the United States between 1820 and 1850 had sustained over time, we'd have today approximately one and a half billion people in the United States.

如果在1820至1850年间,美国人口增长率保持下去的话,今天我们的美国,就会拥有近十五亿人口

耶鲁公开课 - 美国内战与重建课程节选

Now, we probably could have improved the accuracy if we had spent individual time with each of you and said, well now here's a serving of this and that's -here's a serving of that.

现在,我们大概可以提高准确性了,如果我们在你们每个人身上花些时间,并告诉你们这有一份这个,这有一份那个

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And if we had more time we could spell out rival theories of well-being, which could be interestingly distinguished one from another in terms of how they answer the question, ?" "What's missing from the experience machine?"

如果我们有更多的时间,我们可以谈谈幸福的各种理论，有意思的是，它们各不相同,他们对这个问题的答案不同，即“体验机器里缺少了什么“

耶鲁公开课 - 死亡课程节选