As president,Buchanan believed he could solve the slavery question by keeping the Abolitionists quiet.

VOA: special.2009.05.07

This is an interesting question: do they solve the moral hazard and adverse selection problem as well as banks do?

一个有意思的问题出现了,他们可以向银行那样,处理好道德风险以及逆向选择问题吗

耶鲁公开课 - 金融市场课程节选

Everyone can solve it, but this question is hard.

大家都能够回答,但这个问题却很难

耶鲁公开课 - 心理学导论课程节选