sentences:  He studied the functional problems of cities and linked them to the state administration system.As a result, he divided the citizens into three classes (soldiers, artisans and 'husbandmen'), with the land also divided into three (sacred, public and private).Aristotle criticized the monopolization of arms-bearing by a single class in Hippodamus' "Best State" writings, arguing that this would lead to oppression of the "farmers" and the "workers" by the arms-bearing class.