But if we had common knowledge of rationality in this class, then the optimal choice would have been 1.

但是如果大家都知道彼此是理性的,那么最优策略就是1

耶鲁公开课 - 博弈论课程节选

And knowledge of French or anything at all about France is not required in this class at all.

这门课并不需要,法语和法国方面的知识

耶鲁公开课 - 1871年后的法国课程节选