Property rights are grounded in the general and individual welfare, as shown in human nature and in the progress of the world along the line of protection to property. Those communities are most happy which best protect individual property. As J. E. Thorold Rogers remarks, “Sacredness is accorded to private property, because society prospers by it.” Even theorizers who denounce individual property-holding found their argument upon the equity of individual rights in property. War is less harmful than anarchy, because it ensures a measure of control. Slavery has sometimes been less injurious than war in giving security to enjoy a portion of self. But a conquest of freedom by bloodshed is worth its cost in self-control. Civilization advances as individual responsibility for property, as well as everything else, is recognized. Christianity is ideally practical in upholding every man’s right to self-control in the interest of all. It distinguishes equity from equality in distribution of all good, wealth included. Public property is rightly public when the wants and energies of all the community are best provided for by such common ownership. Proof in each particular case is essential against the presumption that individual needs are the best impulses to provision for welfare. Even common property is limited necessarily to the numbers who can use it. No property or wealth can exist for anybody without the control of some human individuals for whom it is accumulated. _Wants individual._—We are likely to lose sight of the essential individuality of wants and exertions which make wealth possible, because in any community exchange of services modifies the direct relation of each man’s wants to his accumulations. Assuming that others, wanting food, will exchange clothing for it, one man stores food alone, but in quantities far beyond his own need, measuring its relation to all his material wants through the wants and exertions of others. He feels even more sure of the continued activity of wants and powers among a multitude than if he had but one neighbor; but individuals, after all, must need his products and exert themselves to meet the need, or all his calculations fail. _Progress in welfare._—Economic progress must show a larger welfare to individuals of the community. The familiar figure by which a commonwealth is compared to an animal organism fails to include the important fact that the individuals of the commonwealth furnish the only reason for the existence of the commonwealth itself, as well as its only means of existence. The cells of the animal, or even the most important organs, have no reason for existence in themselves. Each individual man furnishes the reasons for his activity, and the needs of individual men furnish the only reason for having a commonwealth.