他努力消除他惯常的忧虑神情，脸上挂着灿烂的笑容，因为快乐的表情会带来真正快乐的感觉。

He made every effort to smooth out his habitual worried look and wear a sunny smile, since a happy expression can lead to genuinely happy feelings.

youdao

这时我们会说，因为快乐是好的所以值得拥有。

At this point, we say something like, pleasure is worth having for its own sake.

youdao

即使你找不到享受此刻生活的原因，还是享受它吧。因为快乐本身就是它最好的原因。

Even when you have no reason to enjoy life now, enjoy it anyway.for joy is its own best reason.

youdao

Why? Because there's more to life than just pleasure and the absence of pain, or so it seems to me.

为什么？因为生命不仅仅是,享受快乐，避免痛苦，我是这样认为。

耶鲁公开课 - 死亡课程节选

So, you've got the best possible balance of wonderful pleasures and wonderful, fantastic experiences, since that's all there is to human wellbeing.

你获得最平衡的,美妙的快乐和美妙的体验，因为人类幸福仅在于此。

耶鲁公开课 - 死亡课程节选

But ultimately, the best way, the optimal way spreading happiness is to work on your own happiness, because then you are leading by example.

但最好的方法，传播快乐的最佳方法是努力争取自己的快乐，因为那时你就成为榜样。

哈佛公开课 - 幸福课课程节选