There are three qualifications necessary for those who fill the first departments in government; first of all, an affection for the established constitution; second place, abilities every way completely equal to the business of their office; in the third, virtue and justice correspondent to the nature of that particular state they are placed in; for if justice is not the same in all states, it is evident that there must be different species thereof. There may be some doubt, when all these qualifications do not in the same persons, in what manner the choice shall be made; as for instance, suppose that one person is an accomplished general, but a bad man and no friend to the [1309b] constitution; another is just and a friend to it, which shall one prefer? we should then consider of two qualities, which of them the generality possess in a greater degree, which in a less; for which reason in the choice of a general we should regard his courage more than his virtue as the more uncommon quality; as there are fewer capable of conducting an army than there are good men: but, to protect the state or manage the finances, the contrary rule should be followed; for these require greater virtue than the generality are possessed of, but only that knowledge which is common to all. It may be asked, if a man has abilities equal to his appointment in the state, and is affectionate to the constitution, what occasion is there for being virtuous, since these two things alone are sufficient to enable him to be useful to the public? it is, because those who possess those qualities are often deficient in prudence; for, as they often neglect their own affairs, though they know them and love themselves, so nothing will prevent their serving the public in the same manner. In short, whatsoever the laws contain which we allow to be useful to the state contributes to its preservation: but its first and principal support is (as has been often insisted upon) to have the number of those who desire to preserve it greater than those who wish to destroy it. Above all things that ought not to be forgotten which many governments now corrupted neglect; namely, to preserve a mean. For many things seemingly favourable to a democracy destroy a democracy, and many things seemingly favourable to an oligarchy destroy an oligarchy. Those who think this the only virtue extend it to excess, not considering that as a nose which varies a little from perfect straightness, either towards a hook nose or a flat one, may yet be beautiful and agreeable to look at; but if this particularity is extended beyond measure, first of all the properties of the part is lost, but at last it can hardly be admitted to be a nose at all, on account of the excess of the rise or sinking: thus it is with other parts of the human body; so also the same thing is true with respect to states; for both an oligarchy and a democracy may something vary from their most perfect form and yet be well constituted; but if any one endeavours to extend either of them too far, at first he will make the government the worse for it, but at last there will be no government at all remaining. The lawgiver and the politician therefore should know well what preserves and what destroys a democracy or an oligarchy, for neither the one nor the other can possibly continue without rich and poor: but that whenever an entire equality of circumstances [1310a] prevails, the state must necessarily become of another form; so that those who destroy these laws, which authorise an inequality in property, destroy the government. It is also an error in democracies for the demagogues to endeavour to make the common people superior to the laws; and thus by setting them at variance with the rich, dividing one city into two; whereas they ought rather to speak in favour of the rich. In oligarchies, on the contrary, it is wrong to support those who are in administration against the people. The oaths also which they take in an oligarchy ought to be contrary to what they now are; for, at present, in some places they swear, "I will be adverse to the common people, and contrive all I can against them;" whereas they ought rather to suppose and pretend the contrary; expressing in their oaths, that they will not injure the people. But of all things which I have mentioned, that which contributes most to preserve the state is, what is now most despised, to educate your children for the state; for the most useful laws, and most approved by every statesman, will be of no service if the citizens are not accustomed to and brought up in the principles of the constitution; of a democracy, if that is by law established; of an oligarchy, if that is; for if there are bad morals in one man, there are in the city. But to educate a child fit for the state, it must not be done in the manner which would please either those who have the power in an oligarchy or those who desire a democracy, but so as they may be able to conduct either of these forms of governments. But now the children of the magistrates in an oligarchy are brought up too delicately, and the children of the poor hardy with exercise and labour; so that they are both desirous of and able to promote innovations. In democracies of the purest form they pursue a method which is contrary to their welfare; the reason of which is, that they define liberty wrong: now, there are two things which seem to be the objects of a democracy, that the people in general should possess the supreme power, and all enjoy freedom; for that which is just seems to be equal, and what the people think equal, that is a law: now, their freedom and equality consists in every one's doing what they please: that is in such a democracy every one may live as he likes; "as his inclination guides," in the words of Euripides: but this is wrong, for no one ought to think it slavery to live in subjection to government, but protection. Thus I have mentioned the causes of corruption in different states, and the means of their preservation.