The other and better course is to send colonies to one or two places, which may be as keys to that state, for it is necessary either to do this or else to keep there a great number of cavalry and infantry. A prince does not spend much on colonies, for with little or no expense he can send them out and keep them there, and he offends a minority only of the citizens from whom he takes lands and houses to give them to the new inhabitants; and those whom he offends, remaining poor and scattered, are never able to injure him; whilst the rest being uninjured are easily kept quiet, and at the same time are anxious not to err for fear it should happen to them as it has to those who have been despoiled. In conclusion, I say that these colonies are not costly, they are more faithful, they injure less, and the injured, as has been said, being poor and scattered, cannot hurt. Upon this, one has to remark that men ought either to be well treated or crushed, because they can avenge themselves of lighter injuries, of more serious ones they cannot; therefore the injury that is to be done to a man ought to be of such a kind that one does not stand in fear of revenge.
But in maintaining armed men there in place of colonies one spends much more, having to consume on the garrison all the income from the state, so that the acquisition turns into a loss, and many more are exasperated, because the whole state is injured; through the shifting of the garrison up and down all become acquainted with hardship, and all become hostile, and they are enemies who, whilst beaten on their own ground, are yet able to do hurt. For every reason, therefore, such guards are as useless as a colony is useful.
Again, the prince who holds a country differing in the above respects ought to make himself the head and defender of his less powerful neighbours, and to weaken the more powerful amongst them, taking care that no foreigner as powerful as himself shall, by any accident, get a footing there; for it will always happen that such a one will be introduced by those who are discontented, either through excess of ambition or through fear, as one has seen already. The Romans were brought into Greece by the Aetolians; and in every other country where they obtained a footing they were brought in by the inhabitants. And the usual course of affairs is that, as soon as a powerful foreigner enters a country, all the subject states are drawn to him, moved by the hatred which they feel against the ruling power. So that in respect to those subject states he has not to take any trouble to gain them over to himself, for the whole of them quickly rally to the state which he has acquired there. He has only to take care that they do not get hold of too much power and too much authority, and then with his own forces, and with their goodwill, he can easily keep down the more powerful of them, so as to remain entirely master in the country. And he who does not properly manage this business will soon lose what he has acquired, and whilst he does hold it he will have endless difficulties and troubles.
The Romans, in the countries which they annexed, observed closely these measures; they sent colonies and maintained friendly relations with2 the minor powers, without increasing their strength; they kept down the greater, and did not allow any strong foreign powers to gain authority. Greece appears to me sufficient for an example. The Achaeans and Aetolians were kept friendly by them, the kingdom of Macedonia was humbled, Antiochus was driven out; yet the merits of the Achaeans and Aetolians never secured for them permission to increase their power, nor did the persuasions of Philip ever induce the Romans to be his friends without first humbling him, nor did the influence of Antiochus make them agree that he should retain any lordship over the country. Because the Romans did in these instances what all prudent princes ought to do, who have to regard not only present troubles, but also future ones, for which they must prepare with every energy, because, when foreseen, it is easy to remedy them; but if you wait until they approach, the medicine is no longer in time because the malady has become incurable; for it happens in this, as the physicians say it happens in hectic fever, that in the beginning of the malady it is easy to cure but difficult to detect, but in the course of time, not having