"But most of the people on Twitter that I see are actually trying to have a substantive discussion a real conversation about topics that are interesting to them.

VOA: special.2009.09.14

But the first person who had a real discussion had a real meeting with the president in our construct, was the Chief of Staff.

但第一个,和他有真正谈话,和总统真正开会的,在我们的习惯里，是办公室主任。

普林斯顿公开课 - 国际座谈会课程节选