The universal state will never allow for or does not allow for the kind of self-perfection that a small, self-governing polis will have.

万国之城将永不会允许,或说不会允许一种自我完善,那只有在小型，自治的城邦中才行得通。

耶鲁公开课 - 政治哲学导论课程节选

So what follows, in one sense, that when Aristotle says that man is by nature a political animal and the city is by nature, the city can never be a universal state.

这响应了，亚里士多德所说,人类天生是政治动物,而城市是自然的演变，城市永远不能是一座万国之城。

耶鲁公开课 - 政治哲学导论课程节选