Since, then, according to our first method in treating of the different forms of government, we have divided those which are regular into three sorts, the kingly, the aristocratical, the free states, and shown the three excesses which these are liable to: the kingly, of becoming tyrannical; the aristocratical, oligarchical; and the free state, democratical: and as we have already treated of the aristocratical and kingly; for to enter into an inquiry what sort of government is best is the same thing as to treat of these two expressly; for each of them desires to be established upon the principles of virtue: and as, moreover, we have already determined wherein a kingly power and an aristocracy differ from each other, and when a state may be said to be governed by a king, it now remains that we examine into a free state, and also these other governments, an oligarchy, a democracy, and a [1289b] tyranny; and it is evident of these three excesses which must be the worst of all, and which next to it; for, of course, the excesses of the best and most holy must be the worst; for it must necessarily happen either that the name of king only will remain, or else that the king will assume more power than belongs to him, from whence tyranny will arise, the worst excess imaginable, a government the most contrary possible to a free state. The excess next hurtful is an oligarchy; for an aristocracy differs much from this sort of government: that which is least so is a democracy. This subject has been already treated of by one of those writers who have gone before me, though his sentiments are not the same as mine: for he thought, that of all excellent constitutions, as a good oligarchy or the like, a democracy was the worst, but of all bad ones, the best.

Now I affirm, that all these states have, without exception, fallen into excess; and also that he should not have said that one oligarchy was better than another, but that it was not quite so bad. But this question we shall not enter into at present. We shall first inquire how many different sorts of free states there are; since there are many species of democracies and oligarchies; and which of them is the most comprehensive, and most desirable after the best form of government; or if there is any other like an aristocracy, well established; and also which of these is best adapted to most cities, and which of them is preferable for particular persons: for, probably, some may suit better with an oligarchy than a democracy, and others better with a democracy than an oligarchy; and afterwards in what manner any one ought to proceed who desires to establish either of these states, I mean every species of democracy, and also of oligarchy. And to conclude, when we shall have briefly gone through everything that is necessary, we will endeavour to point out the sources of corruption, and stability, in government, as well those which are common to all as those which are peculiar to each state, and from what causes they chiefly arise.