You can only do that by balancing competitive desires that can be thought of as evil; faction was what they were talking about and everybody thought faction was bad, but it was inevitable.

你仅仅通过平衡那些被视为罪恶的,竞争性欲望就可以达到此目的,也就是,大家所谓的派系,每个人都认为派系是不好的,但它是必然存在的

耶鲁公开课 - 古希腊历史简介课程节选