Harvard has developed an extensive program of intramural sports since the number of students who can compete at the intercollegiate level is limited.

因为参加校际比赛的名额有限，哈佛发展了一个广泛的校内比赛项目。

Across all of these different contexts -- your personal life, you work life, even silly things like intramural sports -- we see spending on other people has a bigger return for you than spending on yourself.

在所有不同的情况下－你的个人生活、工作生活，甚至一些愚蠢的事，像校内体育活动，我们看见，将钱花在别人身上比花在自己身上得到的回报更多。