If it took you a while to digest it, I ask you to think harder.

如果你还要看一会儿才能领会,你就得好好努力了

耶鲁公开课 - 基础物理课程节选

But also to teach him discipline and to work hard and to study hard

但还要教会他纪律、努力工作和好好学习，

要成为好爸爸 - SpeakingMax英语口语达人

So why am I working hard in order to get that BCG job?

我为什么还要努力争取好工作？

哈佛公开课 - 幸福课课程节选