The international relations of states find their expression, we are told, in war and peace. What has been the part played by these great counteracting forces in the history of nations? What has it been in prehistoric times, in the life of man in what is called the “state of nature”? “It is no easy enterprise,” says Rousseau, in more than usually careful language, “to disentangle that which is original from that which is artificial in the actual state of man, and to make ourselves well acquainted with a state which no longer exists, which perhaps never has existed and which probably never will exist in the future.” (Preface to the _Discourse on the Causes of Inequality_, 1753, publ. 1754.) This is a difficulty which Rousseau surmounts only too easily. A knowledge of history, a scientific spirit may fail him: an imagination ever ready to pour forth detail never does. Man lived, says he, “without industry, without speech, without habitation, without war, without connection of any kind, without any need of his fellows or without any desire to harm them ... sufficing to himself.”[2] (_Discourse on the Sciences and Arts_, 1750.) Nothing, we are now certain, is less probable. We cannot paint the life of man at this stage of his development with any definiteness, but the conclusion is forced upon us that our race had no golden age,[3] no peaceful beginning, that this early state was indeed, as Hobbes held, a state of war, of incessant war between individuals, families and, finally, tribes. [2] For the inconsistency between the views expressed by Rousseau on this subject in the _Discourses_ and in the _Contrat Social_ (Cf. I. Chs. VI., VIII.) see Ritchie’s _Natural Right_, Ch. III., pp. 48, 49; Caird’s essay on Rousseau in his _Essays on Literature and Philosophy_, Vol. I.; and Morley’s _Rousseau_, Vol. I., Ch. V.; Vol. II., Ch. XII. [3] The theory that the golden age was identical with the state of nature, Professor D. G. Ritchie ascribes to Locke (see _Natural Right_, Ch. II., p. 42). Locke, he says, “has an idea of a golden age” existing even after government has come into existence—a time when people did not need “to examine the original and rights of government.” [_Civil Government_, II., § 111.] A little confusion on the part of his readers (perhaps in his own mind) makes it possible to regard the state of nature as itself the golden age, and the way is prepared for the favourite theory of the eighteenth century:— “Nor think in nature’s state they blindly trod; The state of nature was the reign of God: Self-love and social at her birth began, Union the bond of all things and of man. Pride then was not, nor arts that pride to aid; Man walk’d with beast, joint tenant of the shade; The same his table, and the same his bed; No murder cloath’d him, and no murder fed.” [_Essay on Man_, III., 147 _seq._]