But if my students can catch me making a mistake, it means they are following it and they are not hesitating to tell me.

如果我的学生能发现我犯的错误,这证明你们确实在听课,并且愿意直言不讳

耶鲁公开课 - 基础物理课程节选

The innocent and the beautiful Have no enemy but time; Arise and bid me strike a match And strike another till time catch; Should the conflagration climb, Run till all the sages know.

天真者和美丽者,除了时光没有敌人；,起来，让我划一根火柴,再划一根，直到时光点燃；,假如大火升腾，就奔跑，直到所有圣贤都知道。

耶鲁公开课 - 现代诗歌课程节选