Even if what happen, just think of its meaning. The purpose of life is to teach you how to be happier, less sad.

不论发生什么事，不管是好是坏，思考它的意义吧。生活的目的是教会你如何开心更多、伤心更少。

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Frank saw and felt how much happier a boy may be by not meddling with what does not belong to him.

弗兰克看到并感觉到，一个不去干涉不属于他的东西的孩子会多么快乐。

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Zhang Shangying from Song dynasty said, “Nothing is happier than being happy of doing good deeds”, only a person whoknows how to give rather than just take can be truly happy.

宋朝的张商英曾说，“没有比做好事更快乐的了。” 只有当一个人懂得给予而不是一味索取的时候才会感到真正的快乐。

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"How much happier a world it would be if one did not have to mount crusades against racism, segregation, a Holocaust, the extermination of 'inferior peoples, '" notes presidential historian Robert Dallek.

CNN: The necessary evil?