Just like the lottery would make a very little difference to our wellbeing.

就像中了彩票,对我们是否幸福影响甚微。

哈佛公开课 - 幸福课课程节选

Just want to do things on my own: Can I make a difference?

只想做自己的事，我能否实现改变？

哈佛公开课 - 幸福课课程节选

This desire to make a difference come into just about all students.

渴望改变世界,是所有学生都有的想法。

哈佛公开课 - 幸福课课程节选