The problem is that you get tired of doing math after a while, 100 years, 1,000 years, a million years, whatever it is.

问题是经过一段时间后你会厌倦数学，不管是一百年还是一百万年。

耶鲁公开课 - 死亡课程节选

Another point about this sort of ambivalence about being czar is that he often made a point of choosing his most trusted advisors from the ranks of commoners and gave them the right to become titled after a certain amount of time after a certain amount of time in the royal bureaucracy.

他作为沙皇矛盾的另一点是,他最信任的顾问,常常是从普通民众中选出来的,而且经过一段时间后,他会在皇家官僚机构中给他们一个头衔

耶鲁公开课 - 欧洲文明课程节选

But I imagine that after a period, there'd be this-- Well, humans have this ability to look down on their experiences, or step back from their experiences, and assess them.

但我想经过一段时间后-,人类有能力审视自己的体验，或从体验中抽身而出加以评估。

耶鲁公开课 - 死亡课程节选

After a while, part of you is going to start asking, "Huh, say, it feels the same as it was yesterday, and the day before that and the day before that.

经过一段时间后，你会开始产生置疑，“原来和昨天的感觉一个样，和之前每一天的感觉都一样。

耶鲁公开课 - 死亡课程节选