It was then in a matter of moments, that I decided that I had to find out why and become happier.

也就是在那时，我决定要找出原因，变得快乐。

哈佛公开课 - 幸福课课程节选

I feel like we're healthier and happier than them.

我感觉，我们比他们更健康，也更快乐。

耶鲁对比哈佛 - SpeakingMax英语口语达人

Neither it is a negative sum game-- it's not that my happiness takes away from other people's happiness which will be a negative sum game: if I have more, you'll necessarily have less.

也不是负和游戏-,我的快乐不是从别人那里夺来,那将是负和游戏：,我有更多，你一定更少。

哈佛公开课 - 幸福课课程节选