1330b and among the remaining considerations, a sloping site is favorable both for political and for military purposes. For military purposes therefore the site should be easy of exit for the citizens themselves, and difficult for the adversary to approach and to blockade, and it must possess if possible a plentiful natural supply of pools and springs, but failing this, a mode has been invented of supplying water by means of constructing an abundance of large reservoirs for rain-water, so that a supply may never fail the citizens when they are debarred from their territory by war. And since we have to consider the health of the inhabitants, and this depends upon the place being well situated both on healthy ground and with a healthy aspect, and secondly upon using wholesome water-supplies, the following matter also must be attended to as of primary importance. Those things which we use for the body in the largest quantity, and most frequently, contribute most to health; and the influence of the water-supply and of the air is of this nature. Hence in wise cities if all the sources of water are not equally pure and there is not an abundance of suitable springs, the water-supplies for drinking must be kept separate from those for other requirements. As to fortified positions, what is expedient is not the same for all forms of constitution alike; for example, a citadel-hill is suitable for oligarchy and monarchy,and a level site for democracy; neither is favorable to an aristocracy, but rather several strong positions. The arrangement of the private dwellings is thought to be more agreeable and more convenient for general purposes if they are laid out in straight streets, after the modern fashion, that is, the one introduced by Hippodamus¹; but it is more suitable for security in war if it is on the contrary plan, as cities used to be in ancient times; for that arrangement is difficult for foreign troops² to enter and to find their way about in when attacking. Hence it is well to combine the advantages of both plans (for this is possible if the houses arelaid out in the way which among the farmers some people call “on the slant”³ in the case of vines), and not to lay out the whole city in straight streets, but only certain parts and districts, for in this way it will combine security with beauty.

As regards walls, those who aver that cities which pretend to valor should not have them hold too old-fashioned a view—and that though they see that the cities that indulge in that form of vanity are refuted by experience. It is true that against an evenly matched foe and one little superior in numbers it is not honorable to try to secure oneself bythe strength of one’s fortifications; but as it does and may happen that the superior numbers of the attackers may be too much for the human valor of a small force, if the city is to survive and not to suffer disaster or insult, the securest fortification of walls must be deemed to be the most warlike,

1331a particularly in view of the inventions that have now been made in the direction of precision with missiles and artillery for sieges. To claim not to encompass cities with walls is like desiring⁴ the country to be easy to invade and stripping it of hilly regions, and similarly not surrounding even private dwellings with house-walls on the ground that the inhabitants will be cowardly. Another point moreover that must not be forgotten is that those who have walls round the city can use their cities in both ways, both as walled cities and as open ones, whereas cities not possessing walls cannot be used in both ways. If then this is so, not only must walls be put round a city, but also attention must be paid to them in order that they may be suitable both in regard to the adornment of the city and in respect of military requirements, especially the new devices recently invented. For just as the attackers of a city are concerned to study the means by which they can gain the advantage, so also for the defenders some devices have already been invented and others they must discover and think out; for people do not even start attempting to attack those who are well prepared.

And since the multitude of citizens must be distributedin separate messes, and the city walls must be divided up by guard-posts and towers in suitable places, it is clear that these facts themselves call for some of the messes to be organized at these guard-posts. These things then might be arranged in this manner.

But it is fitting that the dwellings assigned to the gods and the most important of the official messes should have a suitable site, and the same for all, excepting those temples which are assigned a special place apart by the law or else by some utterance of the Pythian oracle. And the site would be suitable if it is one that is sufficiently conspicuous in regard to the excellence of its position, and also of superior strength in regard to the adjacentparts of the city. It is convenient that below this site should be laid out an agora of the kind customary in Thessalywhich they call a free agora, that is, one which has to be kept clear of all merchandise and into which no artisan or farmer or any other such person may intrude unless summoned by the magistrates. It would give amenity to the site if the gymnasia of the older men were also situated here—for it is proper to have this institution also divided according to ages,⁵ and for certain magistrates to pass their time among the youths while the older men spend theirs with the magistrates; for the presence of the magistrates before men’s eyes most engenders true respect and a freeman’s awe.

1331b The agora for merchandise must be different from the free agora, and in another place; it must have a site convenient for the collection there of all the goods sent from the seaport and from the country. And as the divisions of the state’s populace include⁶ priests and magistrates, it is suitable that the priests’ mess-rooms also should have their position round that of the sacred buildings. And all the magistracies that superintend contracts, and the registration of actions at law, summonses and other such matters of administration, and also those that deal with the control of the markets and with what is termed policing the city, should have buildings adjacent to an agora or some public place of resort, and such a place is the neighborhood of the business agora, for we assign the upper agora as the place in which to spend leisure, and this one for necessary business.

The arrangements in the country also should copy the plan described; there too the magistrates called in some states Wardens of the Woods and in others Land-superintendents must have their guard-posts and mess-rooms for patrol duty, and also temples must be distributed over the country, some dedicated to gods and some to heroes. But to linger at this point over the detailed statement and discussion of questions of this kind is waste of time.The difficulty with such things is not so much in the matter of theory but in that of practice; to lay down principles is a work of aspiration, but their realization is the task of fortune. Hence we will relinquish for the present the further consideration of matters of this sort.

We must now discuss the constitution itself, and ask what and of what character should be the components of the state that is to have felicity and good government. There are two things in which the welfare of all men consists: one of these is the correct establishment of the aim and end of their actions, the other the ascertainment of the actions leading to that end. (For the end proposed and the means adopted may be inconsistent with one another, as also they may be consistent; sometimes the aim has been correctly proposed, but people fail to achieve it in action, sometimes they achieve all the means successfully but the end that they posited was a bad one, and sometimes they err as to both—for instance, in medicine practitioners are sometimes both wrong in their judgement of what qualities a healthy body ought to possess and unsuccessful in hitting on effective means to produce the distinctive aim that they have set before them; whereas in the arts and sciences both these things have to be secured, the end and the practical means to the end.) Now it is clear that all men aim at the good life and at happiness, but though some possess the power to attain these things, some do not, owing to some factor of fortune or of nature

(fortune because the good life needs also a certain equipment of means, 1332a and although it needs less of this for men of better natural disposition it needs more for those of worse); while others, although they have the power, go wrong at the start in their search for happiness.⁷ But the object before us is to discern the best constitution, and this is the one under which a state will be best governed, and a state will be best governed under the constitution under which it has the most opportunity for happiness; it is therefore clear that we must know whathappiness is. The view that we maintain (and this is the definition that we laid down in theEthics,⁸ if those discourses are of any value) is that happiness is the complete activity and employment of virtue, and this not conditionally but absolutely. When I say “conditionally” I refer to things necessary, by “absolutely” I mean “nobly”: for instance, to take the case of just actions, just acts of vengeance and of punishment spring it is true from virtue, but are necessary, and have the quality of nobility only in a limited manner (since it would be preferable that neither individual nor state should have any need of such things), whereas actions aiming at honors and resources⁹ are the noblest actions absolutely; for the former class of acts consist in the removal¹⁰ of something evil, but actions of the latter kind are the opposite—they are the foundation and the generation of things good. The virtuous man will use even poverty, disease, andthe other forms of bad fortune in a noble manner, but felicity consists in their opposites (for it is a definition established by our ethical discourses¹¹ that the virtuous man is the man of such a character that because of his virtue things absolutely good are good to him, and it is therefore clear that his employment of these goods must also be virtuous and noble absolutely); and hence men actually suppose that external goods are the cause of happiness, just as if they were to assign the cause of a brilliantly fine performance on the harp to the instrument rather than to the skill of the player. It follows therefore from what has been said that some goods must be forthcoming to start with and others must be provided by the legislator. Hence we pray that the organization of the state may be successful in securing those goods which are in the control of fortune (for that fortune does control externalgoods we take as axiomatic); but when we come to the state’s being virtuous, to secure this is not the function of fortune but of science and policy. But then the virtue of the state is of course caused by the citizens who share in its government being virtuous; and in our state all the citizens share in the government. The point we have to consider therefore is, how does a man become virtuous? For even if it be possible for the citizens to be virtuous collectively without being so individually, the latter is preferable, since for each individual to be virtuous entails as a consequence the collective virtue of all. But there are admittedly three things by which men are made good and virtuous, and these three things are nature, habit and reason. For to start with, one must be born with the nature of a human being and not of some other animal; and secondly, one must be born of a certain quality of body and of soul. But there are some qualities that it is of no use to be born with,