You can talk about working hard on your joint problem sets, but as long as you go home and you don't work hard, it doesn't help.

你大谈特谈你在多么努力地做家庭作业,但是回家后如果你依旧偷懒,这还是无济于事

耶鲁公开课 - 博弈论课程节选

The way we teach this class is we're going to play games, we're going to have discussions, we're going to talk among the class, and you're going to be learning from each other, and I want you to help people watching at home to be able to learn too.

课堂上我们通过做游戏来博弈,课上会有随堂讨论,课堂交流,我们相互学习,这样看视频的学生,也能收到良好的教学效果

耶鲁公开课 - 博弈论课程节选