We are going to have to stop doing that because we cannot find an individual electron.

我们正要停止那么做,因为无法发现一个独立电子。

麻省理工公开课 - 固态化学导论课程节选

Think about your dying, your being dead-- Since that's impossible to picture, that's impossible to imagine, nobody believes in the possibility that they're going to die, that they're going to cease to exist.

思考你的死亡-,既然这是无法想象的，没有人相信,他们死亡这个可能，停止存在的可能。

耶鲁公开课 - 死亡课程节选

In fact, he broke the 4 minutes and 10 seconds mark, 4 minutes and 5 seconds mark and he got 4 minutes and 2 seconds and stopped, like everyone else-- could not go below the 4 minutes and 2 seconds.

他突破了四分十秒，四分五秒,跑到四分两秒时停止，像所有人一样-,无法低于四分二秒。

哈佛公开课 - 幸福课课程节选