I said was really the central concept or the leading thread of this course

它实在是这门课程的核心概念和首要线索
and it's in books III through VI of Aristotle's Politics

它主要出现在《政治学》卷三到卷六中
that he develops his idea of the regime and regime politics.

在这四卷中他发展了政体和政体政治理论
Book I, that we spoke about last time,

我们上节课讲到的卷一
really in a way tells us something about the

事实上以某种方式告诉我们一些关于
you might say almost the metaphysics of Aristotle's politics.

可将它称为亚里士多德政治学的形而上学
Today Aristotle speaks more empirically,

今天亚里士多德将告诉我们更多更实际的
more politically about what a regime is.

更多关于政治学中政体这个概念
His idea of regime politea, again, the same word,

我们再次强调他的政体概念或称politea
the same word that was used for the title of Plato's Republic

同样被柏拉图用在《理想国》中
is the centerpiece of Aristotle's politics literally.

它是亚里士多德政治论著的核心
It occupies the theme of the middle three books, books III through VI.

它囊括的卷三到卷六讨论的全部核心主题