Because happiness is very relative.

快乐是非常相对的。

youdao

Because happiness is only real if it lasts forever?

因为只有永恒的幸福才是真正的幸福吗？

youdao

Please do not go back to chase, you should run forward, because happiness in front!

请不要回头去追，你应该向前奔跑，因为快乐在前方！

youdao

Knowledge leads to happiness, because to have it is to know what is true and real.

VOA: special.2009.11.15

Because happiness does not just come spontaneously when we negate unhappiness.

因为快乐不会自发而来,不会因为消除了忧愁，就变得快乐。

哈佛公开课 - 幸福课课程节选

Second reason for having positive psychology's field of study and focusing on what works and focusing on research in happiness,relationships and wellbeing is because happiness does not spontaneously rise when take unhappiness away.

第二个研究积极心理学的原因,研究可行的事和,研究快乐，人际关系，幸福的原因,是因为幸福不会因为驱除了忧愁,而自动增长。

哈佛公开课 - 幸福课课程节选

Perhaps each society's richer people are also happier because happiness comes not from absolute wealth but from relative wealth--recall H.

FORBES: Magazine Article

NBC's The Office is more about success and happiness, not because success necessarily equals happiness, but because in the lives of these office characters, happiness often begets success.

FORBES: Commentary

Unemployment is known to damage happiness because not working falls short of social expectations.

ECONOMIST: How older workers can find happiness