It is as easy to refute the doctrine as to state it. It is not historically true that men are or ever have been born equal. It is not logically true that a man is born with any rights or can ever acquire any except with the consent of his associates. The historical basis must appear absurd to any one who is acquainted with the theory of evolution and the early history of family and tribal organization. The logical basis must appear equally absurd to any one who is acquainted with the nature of a right. It is impossible to conceive of such a thing as an abstract right apart from definite human relationships. A right cannot exist in the air. It cannot even attach to an isolated individual. A right is always a right against some other, and postulates the association of its possessor with at least one other human being. How can we with any propriety speak of the rights of Robinson Crusoe before the arrival of Friday? The powers of Crusoe were at first limited solely by physical considerations. When he took Friday under his protection he acquired certain rights as against Friday, and at the same time Friday acquired certain rights as against him. But this is only to say that the natural power of each to do as he pleased, hitherto limited only by natural forces, was thereafter limited also by certain rules of conduct, recognized by both for observance so long as their {114} mutual relations continued. The extent of those limits could only be defined by their agreement. These are all the rights which any man can ever possess, even in the most complex society. A right is nothing more or less than a defined natural power. It may vary in the degree of its definition. It may be enforced by all the authority of the whole community, and be called a legal right. It may be enforced only by the pressure of the opinion of the community or of a class, and be called a moral right. In neither case is it a thing of spontaneous generation. It arises always out of the relations of human beings with each other, and may always be tempered and qualified by the nature of their relations.