The connection between happiness and success was studied by a team from the university of California Riverside,led by Professor Sonja Lyubomirsky.

• 据发现，幸福感是让一个人感到舒适的基本要素。而且，幸福感可以传播给整个民族。生活在一个有幸福感的国家里，人们更乐于帮助别人。