The number three is not a physical object, perfect roundness is not a physical object, perfect goodness is not a physical object.

数字三不是一个物理实体,正圆不是一个物理实体,真正的善良不是一个物理实体

耶鲁公开课 - 死亡课程节选

Every now and then there are some crazy people who think they're Napoleon.

三不五时便会有疯子认为自己是拿破仑。

耶鲁公开课 - 死亡课程节选