We'v e shown that learning optimism prevents depression and anxiety in children and adults, roughly halving their incidence over the next 2 years.

研究证实，乐观可帮助儿童和成人,预防抑郁和焦虑，使未来两年的发病率降低一半。

哈佛公开课 - 幸福课课程节选

By this we mean poor diet and physical activity and obesity, but history offers a depressing picture.

在这个问题中我们是指不良饮食,缺乏运动和肥胖,但历史情况不容乐观

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

we now have a return of the division between moderates, optimists and pessimists.

现在我们有了温和主义者，乐观主义者和悲观主义者之分。

耶鲁公开课 - 死亡课程节选

And he had a miserable life until then because he always had illnesses, some of which might be even psychosomatic. So he was the optimist and the one who lived well with the pessimist.

那之前他生活得很悲惨，因为,他总是病魔缠身，有些是精神方面的疾病,因此他属于乐观主义者,而且能够和悲观主义者相处的很好。

麻省理工公开课 - 电影哲学课程节选

How do we enhance the belief in ourselves if there's such high correlation and there's a very high correlation and predictive power to a sense of hope, to a sense of optimism, to beliefs.

如何加强我们的信念,如果真有这么紧密的关联,如果希望,乐观主义和信念真的，有着非常紧密的关联和预测力。

哈佛公开课 - 幸福课课程节选