Two or one! It was, in other words, about the problem of incest, the problem of the over-determination of blood relations and the under-determination of blood relations.

二或一，换句话说，是乱伦问题，是血缘的超定,和不充分决定的问题。

耶鲁公开课 - 文学理论导论课程节选

You can't stick your bad paper to the banker who knows everybody in the town; he'll figure it out and that's the -and so that's the problem that's solved by bankers.

你休想把垃圾债权随便卖给银行家,因为他对这个圈子了如指掌,他定会识破的,因此银行家们就解决了逆向选择问题

耶鲁公开课 - 金融市场课程节选