He believed that society was at its optimum and you can only improve upon the existing one. .
Plato's perfect society would consist of three basic groups, which are Guardians (Gold), Auxiliaries (Silver), and the Artisan (Bronze). The highest of these classes are the gold people, which consist of rulers and non-rulers. Those that are rulers are society's decision & policy makers and non-rulers occupy levels of civil servants. The fundamental prerequisite to becoming a genuine philosopher is to have knowledge of forms, thus enabling you to know the truth. Plato's theory of the forms is partly logical and part metaphysical. Armed with the truth, he believed that philosophical ruler will always make the right decision, and rule with total wisdom, justice and virtue. The rulers, he felt, wouldn't posses any money or property, they would be free of desires, excesses, and vices. The Auxiliaries (Silver) are people of strength, courage, and military capacity; they occupy a small sector of society. All auxiliaries would be subjected to a series of tests, which will check their powers of resistance to self-interest, pleasure and other temptations. The last level, Artisan (Bronze), are the workers which might be composed of farmers and artist, essentially non-skilled workers. They would produce all the consumable and non-consumable goods deemed necessary for consumption and the continued economic viability of the society. Plato whole-heartedly felt that if ever the bronze or iron people rule the state would collapse (Class Notes). He sought to establish the concept of the gold class having wisdom, thus they should be wise and good rulers. It was imperative that those who rule be philosophers and skilled in areas that pertained to the interest of the state. .
Aristotle's disagreed with Plato in regards to allowing one particular class to govern the state politically for indefinite period of time. He felt that to not allow interaction among the various classes would inhibit those who posses the ability to engage in political life, an injustice.
Especially the general society in the early ages was support Augustine and Aritotle's point of views about inequality gender, the arguments of Christine de Pizan are become more respected in modern World. ...