No-one could help understanding the central problem of the _Social Contract_ immediately, were it not that its doctrines often seem to be strangely formulated. We have seen that this strangeness is due to Rousseau's historical position, to his use of the political concepts current in his own age, and to his natural tendency to build on the foundations laid by his predecessors. There are a great many people whose idea of Rousseau consists solely of the first words of the opening chapter of the _Social Contract_, "Man is born free, and everywhere he is in chains." But, they tell you, man is not born free, even if he is everywhere in chains. Thus at the very outset we are faced with the great difficulty in appreciating Rousseau. When we should naturally say "man ought to be free," or perhaps "man is born for freedom," he prefers to say "man is born free," by which he means exactly the same thing. There is doubtless, in his way of putting it, an appeal to a "golden age"; but this golden age is admittedly as imaginary as the freedom to which men are born is bound, for most of them, to be. Elsewhere Rousseau puts the point much as we might put it ourselves. "Nothing is more certain than that every man born in slavery is born for slavery.... But if there are slaves by nature, it is because there have been slaves against nature" (_Social Contract_, Book I, chap. ii). We have seen that the contrast between the "state of nature" and the "state of society" runs through all Rousseau's work. The _Emile_ is a plea for "natural" education; the Discourses are a plea for a "naturalisation" of society; the _New Héloïse_ is the romantic's appeal for more "nature" in human relationships. What then is the position of this contrast in Rousseau's mature political thought? It is clear that the position is not merely that of the Discourses. In them, he envisaged only the faults of actual societies; now, he is concerned with the possibility of a rational society. His aim is to justify the change from "nature" to "society," although it has left men in chains. He is in search of the true society, which leaves men "as free as before." Altogether, the space occupied by the idea of nature in the _Social Contract_ is very small. It is used of necessity in the controversial chapters, in which Rousseau is refuting false theories of social obligation; but when once he has brushed aside the false prophets, he lets the idea of nature go with them, and concerns himself solely with giving society the rational sanction he has promised. It becomes clear that, in political matters at any rate, the "state of nature" is for him only a term of controversy. He has in effect abandoned, in so far as he ever held it, the theory of a human golden age; and where, as in the _Emile_, he makes use of the idea of nature, it is broadened and deepened out of all recognition. Despite many passages in which the old terminology cleaves to him, he