The middle class he says is able to achieve the confidence of both extreme parties where at least it is sufficiently numerous to avoid the problems : of class struggle and factional conflict.

中间阶级，如他所言,能获致两种极端政党的信任,至少它的人数足以避免,阶级斗争与派系冲突的问题,亚里士多德写到。

耶鲁公开课 - 政治哲学导论课程节选

Economics deals with the transactions involving the production and distribution of wealth sociology with the transaction governing status and class anthropology with the domain of culture and so on.

经济学处理,包含财富生产与分配的交易,社会学处理,管治地位与阶级的问题,人类学专注于文化，依此类推。

耶鲁公开课 - 政治哲学导论课程节选