精神紧张或多愁善感者，会使人体的免疫力降低，因此要保持良好的心态。
Nervous or sentimental, would reduce the body's immune system, so to maintain a good attitude.
许多科学家和普通人都会认为这真是多愁善感，杞人忧天啊。借用笛卡尔的并不恰当的表述来说，人类是“自然界的拥有者和主宰”，为几只蛾子的消失而伤感不合我们的身份。
It's easy to find scientists and lay people who consider this sense of loss mere sentimentality unworthy of our status as 'the lords and possessors of nature', to repeat Descartes' unhappy phrase.
应用推荐