来自《耶鲁大学开放课程：政治哲学导论第7集》

based on different principles that might be hostile to one's own.

基于不同的原则会走向对自身的敌对状态
That is to say not even the best city on Aristotle's account

这就是说亚里士多德眼中的最佳城市
can afford to be without a foreign policy.

都不能离开外交政策
A good citizen of a democracy

民主政体中的好市民
will not be the good citizen of another kind of regime.

不会是其他形式政体中的好市民
Partisanship and loyalty to one's own way of life

党派和对自身生活方式的忠诚
are required by a healthy city.

是健全的城市所需要的
To put the argument in terms that Polemarchus,

用普雷马科斯的观点
from Plato's Republic would have known,

我们从柏拉图的《理想国》应该知道