But at the end of the day, he also essentially made a property argument or a property defense of slavery.

但是在最后,他也做了一个产权本质的争论,或奴隶制的财产辩护

耶鲁公开课 - 美国内战与重建课程节选

because it's just an argument between one or two.

因为这会在一方或两方之间产生争论。

两党制度的优缺点 - SpeakingMax英语口语达人