The reason for that was that in the east and in south, the Greeks lived among people who were more civilized than they, who were more advanced.

究其原因,在东方和南方,希腊人生活在比他们更文明,更先进的民族中间

耶鲁公开课 - 古希腊历史简介课程节选

The reason is because there are two different approaches to deal with illness: one,the positive psychological approach is that the illness is the absence of health, as opposed to health is the absence of illness.

究其原因，是因为有两种不同的方法,对付疾病，一是积极心理学方法,它指的是，疾病相当于不健康，相对地，健康等于没疾病。

哈佛公开课 - 幸福课课程节选