The right thing to do individually or collectively is to maximize, act in a way that maximizes the overall level of happiness.

于公于私，最正确的选择都该是,即为全方位地最大化地提升幸福。

耶鲁公开课 - 公正课程节选

Because I thought about it a lot Welles chose that word I guess obviously that frame was a happy picture ? In the word? Why that word?

因为我对这个问题想了很多,为什么威尔斯要选择这个词,我觉得很明显，这个镜头是幸福的,词内涵的深意？还是为什么选这个词？

麻省理工公开课 - 电影哲学课程节选

We are beings for whom the exercise of the will is a preeminent feature and much of our happiness as human beings depends upon our capacity to exercise our will and our ability for choice.

作为人，意愿的运用是,一种卓越的特性，我们作为人大多数的幸福感,取决于我们运用,意愿和能力来选择。

耶鲁公开课 - 政治哲学导论课程节选