But he says, "Others believe that the distinction between master and slave is not natural, " but is based on force or coercion."

但他还说：，“有些人却不认为,介于主奴间的区别是自然的，而是基于武力或威吓的缘故“

耶鲁公开课 - 政治哲学导论课程节选

racial or ethnic characteristics that distinguish the natural slave from the natural master.

并没有种族特征的区别,介于自然奴隶,与自然主人之间。

耶鲁公开课 - 政治哲学导论课程节选