When the two sides left, will find that once in the together day is how of happiness.

当双方离开时，才会发现那些曾经在一起的日子是多么的幸福。

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Sonja Lyubomirsky, author of The How of Happiness: A Scientific Approach to Getting the Life You Want (Penguin Press, 2008) has researched the science of happiness for years.

索尼娅·柳博米尔斯基著作《如何幸福----过上理想生活的科学方法》（企鹅出版社，2008）。

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You could be savoring a success or savoring music," explains Sonja Lyubomirsky, a psychologist at the University of California at Riverside and author of The How of Happiness.

你可以品味一个成功或品味音乐，”加州大学滨河分校的心理学家及《幸福的方法》（The How of Happiness）一书的作者索尼娅·柳博米尔斯基（Sonja Lyubomirsky）解释道。

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Gillian wrote a report of how he spent the thousand dollars: "Paid by Robert Gillian, one thousand dollars on account of the eternal happiness, owed by Heaven to the best and dearest woman on earth."

VOA: special.2011.08.13

This is a research done by Sonja Lyubomirsky-- I mentioned her book in the first class: "The how of happiness".

这是Sonja，Lyubomirsky做过的一项研究-,我在第一堂课提及她的书：,《快乐之道》

哈佛公开课 - 幸福课课程节选

There is a lot of research showing how difficult it is to change happiness based on external factors.

很多研究表明,基于外在因素改变快乐很难。

哈佛公开课 - 幸福课课程节选

Professor Sonja Lyubomirsky of the University of California (author of The How of Happiness) has conducted happiness research with thousands of men and women.

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By measuring the smiles in the photographs the researchers were able to predict: how fulfilling and long lasting their marriages would be, how highly they would score on standardized tests of well-being and general happiness, and how inspiring they would be to others.

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Beyond that, the effect of money on happiness depends on how happiness is defined.

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