It is a claim already, and as you've seen in Aristotle, towards the end of the history of the free polis, it is something necessary for mankind.

如你在亚里斯多德那里看到那样,在临近自由城邦历史的末期,这已经成为了一种宣言,这对人类来说是不可或缺的

耶鲁公开课 - 古希腊历史简介课程节选