Aristotle, on the other hand was based on equality and classification of government was the same as Plato's just that they were pure and impure and Virtuous and corrupt. Then come Machiavelli who according to his time, talk of the principalities and Prince like that exercises power. Machiavelli said that the forms of classification of Plato and Aristotle were the same, but only changed the way judge. His book a The principea is so important because it is of the first authors to talk about the importance of public opinion because if people were not happy, they could topple the principality. The prince must have the qualities of power, strength, charisma and virtue, and if it does not; at least aparentarlas.Pasando Eventually, he Hobbes in his book Leviathan talk about the need to have a balance of powers. Also speak of the modern conception of the State which has sovereignty and civil society.

It is implicit based on natural law between what is right and what is wrong. Locke, who would talk more about the separation of executive power, a legislature and a judiciary, remain opposed to power has more power over another. This is to protect rights of citizens against absolutism. So theorists and above, and others can be divided as follows: Plato and Aristotle spoke of the city-state. Polybius then talk about the mixed cities.

Cicero speak of the right and the other Roman jurists. Then the patristic speak of God. It would be time then to speak of Machiavelli's Prince and monarchies.