What happened to him, I mean why does he all of a sudden ? become so humble and acquiescent?

他怎么搞的，为何他突然间,变得如此谦卑和默默顺从？

耶鲁公开课 - 政治哲学导论课程节选

Because there is a lot of research that shows when we praise people indiscriminately, we are actually in the long run potentially hurting them more than helping them, whether it's their wellbeing,as well as their success.

因为有很多研究显示,当我们不加区别地赞扬别人，我们实际上是在长期地,默默地伤害他们，而非帮助他们，无论是对他们的幸福感，还是成功。

哈佛公开课 - 幸福课课程节选