The people being the first matter of power and wealth, by whose labour and industry a nation must be gainers in the balance, their increase or decrease must be carefully observed by any government that designs to thrive; that is, their increase must be promoted by good conduct and wholesome laws, and if they have been decreased by war, or any other accident, the breach is to be made up as soon as possible, for it is a maim in the body politic affecting all its parts. Almost all countries in the world have been more or less populous, as liberty and property have been there well or ill secured. The first constitution of Rome was no ill-founded government, a kingly power limited by laws; and the people increased so fast, that, from a small beginning, in the reign of their sixth king were they able to send out an army of 80,000 men. And in the time of the commonwealth, in that invasion which the Gauls made upon Italy, not long before Hannibal came thither, they were grown so numerous, as that their troops consisted of 700,000 foot and 70,000 horse; it is true their allies were comprehended in this number, but the ordinary people fit to bear arms being mustered in Rome and Campania, amounted to 250,000 foot and 23,000 horse. Nothing, therefore, can more contribute to the rendering England populous and strong than to have liberty upon a right footing, and our legal constitution firmly preserved. A nation may be as well called free under a limited kingship as in a commonwealth, and it is to this good form of our government that we partly owe that doubling of the people which has probably happened here in the 435 years last past. And if the ambition of some, and the mercenary temper of others, should bring us at any time to alter our constitution, and to give up our ancient rights, we shall find our numbers diminish visibly and fast. For liberty encourages procreation, and not only keeps our own inhabitants among us, but invites strangers to come and live under the shelter of our laws. The Romans, indeed, made use of an adventitious help to enlarge their city, which was by incorporating foreign cities and nations into their commonwealth; but this way is not without its mischiefs. For the strangers in Rome by degrees had grown so numerous, and to have so great a vote in the councils, that the whole Government began to totter, and decline from its old to its new inhabitants, which Fabius the censor observing, he applied a remedy in time by reducing all the new citizens into four tribes, that being contracted into so narrow a space, they might not have so malignant an influence upon the city.