论文部分内容阅读
美国一项调查显示,今天的美国人并不比50年前的美国人更快乐。美国专家发现,人们有50%的快乐来自遗传,另外一半则依靠后天的修身养性。
A U.S. survey shows that Americans today are no happier than Americans 50 years ago. American experts have found that 50% of the people are from heredity, while the other half rely on acquired self-cultivation.