troops to Afghanistan, there has to be an exit strategy for U.S.

VOA: standard.2009.03.23

It's an interesting thought experiment to try not to know that that's a sign that says "exit."

一个非常有趣的思想实验是，试着不知道,那是一个写着存在的标志“

耶鲁公开课 - 文学理论导论课程节选