I prefer the concept of happiness Danes. Because I think the meaning and value of life is more important, they bring more lasting happiness. In everyday life, when read a joke or a funny video, we might laugh, but this happiness lasts very short. We will also have such experience, when we make a difficult math problem or learning new skills to an item through their own efforts, this happiness will remember with affection, and will let you experience the life of value.
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