Isn't it enough for me to extrapolate from cases that I do come up against in this life?

难道仅仅依靠我这辈子碰到的东西,不足以使我推断出来吗

耶鲁公开课 - 死亡课程节选

One question is this: Is it really true that in order to think about the perfectly straight, I must have somehow, somewhere at some point come up against, had direct knowledge of, the perfectly straight?

一个问题是,难道真的说,为了想象一条完美的直线,我必须,在某处直接碰到,并直接了解一条完美的直线吗

耶鲁公开课 - 死亡课程节选