We have already shown what is the nature of the supreme council in the state, and wherein one may differ from another, and how the different magistrates should be regulated; and also the judicial department, and what is best suited to what state; and also to what causes both the destruction and preservation of governments are owing. As there are very many species of democracies, as well as of other states, it will not be amiss to consider at the same time anything which we may have omitted to mention concerning either of them, and to allot to each that mode of conduct which is peculiar to and advantageous for them; and also to inquire into the combinations of all these different modes of government which we [1317a] have mentioned; for as these are blended together the government is altered, as from an aristocracy to be an oligarchy, and from a free state to be a democracy. Now, I mean by those combinations of government (which I ought to examine into, but have not yet done), namely, whether the deliberative department and the election of magistrates is regulated in a manner correspondent to an oligarchy, or the judicial to an aristocracy, or the deliberative part only to an oligarchy, and the election of magistrates to an aristocracy, or whether, in any other manner, everything is not regulated according to the nature of the government. But we will first consider what particular sort of democracy is fitted to a particular city, and also what particular oligarchy to a particular people; and of other states, what is advantageous to what. It is also necessary to show clearly, not only which of these governments is best for a state, but also how it ought to be established there, and other things we will treat of briefly.