Now, in any society changing this much, this fast, doubling its own population--doubling--in twenty-five years.

现在,在任何变化如此巨大的社会,如此迅速地,在二十五年内,人口增至两倍

耶鲁公开课 - 美国内战与重建课程节选

This left him in a depression for five years, but at age 25, what helped lift him out of this depression is that he met Harriet Taylor.

之后的五年一直陷于抑郁，但二十五岁时，他遇到了海利特·泰勒，从此摆脱抑郁。

耶鲁公开课 - 公正课程节选

Second reason we don't want over-qualified students in the class, it sounds a little nasty, but the second reason is, an over-qualified student, somebody who's, I don't know, programmed for Google for the last five years, is going to have an easy time in this course, but we don't want such a student accidentally intimidating the rest of you.

我们不希望高水平的学生来听课,还有一个原因，虽然听起来，有一点儿令人不快，但是第二个原因是，我们不希望，某位我不知道的高手，在为谷歌编写了五年的程序之后，很轻松地上这门课，从而使得周围同学,感到威胁。

麻省理工公开课 - 计算机科学及编程导论课程节选