At infinity, there's no stored potential energy, and it drops off more and more negative as one over R.

在无限远处，没有储存的势能，并且它向负方向减少，当距离超过R时。

麻省理工公开课 - 固态化学导论课程节选

No one is going to choose a number over 50.

没有人会选择超过50的数

耶鲁公开课 - 博弈论课程节选

It's very easy to get caught up in one's own studies here; and even I freshman year, dove into a world very much familiar to me-- a world that I did like but I just didn't realize that there were in fact worlds that I loved well beyond my domain of familiarity.

在这里，你们会很容易陷入封闭学习的误区;,我上大一的时候，学习的是自己熟悉的专业领域,我很喜欢那个专业但却没有意识到,我对其他领域的爱好,早已超过了我对本专业的爱好。

哈佛公开课 - 计算机科学课程节选

The only thing worth more than the slaves in the American economy of the 1850s was the land itself, and no one can really put a dollar value on all of the land of North America.

十九世纪五十年代的美国经济中,唯一价值超过奴隶的就是土地,而且没有人能够真正对,美国北部的土地进行估值

耶鲁公开课 - 美国内战与重建课程节选