I want to try to sum up what we've learned from this discussion, but, first, let's thank John, Alex, and Julia for a really wonderful job.

我想总结一下从这场讨论中我们所学到的，不过首先谢谢约翰，亚历克斯，朱莉娅,谢谢他们的精彩表现。

耶鲁公开课 - 公正课程节选