That, of course, I argued in those lectures, opened it up for the threat of mortality.

当然，我在那几堂课中对此观点提出了反对意见，以必有一死的威胁反驳了它。

耶鲁公开课 - 1945年后的美国小说课程节选

The people in the Tolstoy story seem to have put facts of mortality out of their mind.

托尔斯泰小说中的人物似乎,把人必有一死的事实置诸脑外。

耶鲁公开课 - 死亡课程节选

In the light of human mortality, the disinterest of the gods, the chanciness of life, what can man do to achieve happiness and immortality?

既然人生苦短,又没有什么神灵保佑,生死都只是随机事件,那我们怎么才能达到幸福和不朽呢

耶鲁公开课 - 古希腊历史简介课程节选