But our present business is only to consider the influence of slavery on the populousness of a state. It is pretended that in this particular the ancient practice had infinitely the advantage, and was the chief cause of that extreme populousness which is supposed in those times. At present all masters discourage the marrying of their male servants, and admit not by any means the marriage of the female, who are then supposed altogether incapacitated for their service; but where the property of the servants is lodged in the master, their marriage and fertility form his riches, and bring him a succession of slaves that supply the place of those whom age and infirmity have disabled. He encourages, therefore, their propagation as much as that of his cattle, rears the young with the same care, and educates them to some art or calling, which may render them more useful or valuable to him. The opulent are, by this policy, interested in the being at least, though not the well-being of the poor; and enrich themselves by increasing the number and industry of those who are subjected to them. Each man, being a sovereign in his own family, has the same interest with regard to it as the prince with regard to the state; and has not, like the prince, any opposite motive of ambition or vainglory which may lead him to depopulate his little sovereignty. All of it is, at all times, under his eye, and he has leisure to inspect the most minute detail of the marriage and education of his subjects.​[44]