The best regime embodies a supreme paradox it would seem. It is superior in some ways to all actual regimes but it has no concrete existence anywhere.

最优的政体体现了至高的矛盾,看起来，它似乎在某些层面,优于所有现行的政体,但却缺乏具体的存在事实。

耶鲁公开课 - 政治哲学导论课程节选