What I've learned which I appreciate so much is just to be reminded that I'm not alone, even I felt alone a lot of the times.

我所学到的让我珍视的,是提醒自己并不孤单，即便很多时候我感到孤独。

普林斯顿公开课 - 人性课程节选

And there's,as far as I can see, no reason at all to believe that he was feeling lonely, feeling distant,feeling alienated from the people who were keeping him company.

在我看来，完全没有理由觉得他感到孤独，感到距离感，感到被陪伴着他的人们疏远。

耶鲁公开课 - 死亡课程节选