But if we give 4 while we read invisible as meaning utterly undetectable, it's no longer so clear to me that 5 we can give him 5.

但是如果我给出,把无形理解为完全检测不到，我认为,就不能给出。

耶鲁公开课 - 死亡课程节选

when I was explaining it to Professor Shiller, he said he didn't quite follow it, so I probably shouldn't try it, and he knows more than I do.

当我向席勒教授解释它的时候，他说他不能完全理解这一理论，所以我很可能不应该尝试它，他知道的比我多。

耶鲁公开课 - 金融市场课程节选