The doctrine that society is founded on a contract between the people and the government is of mediæval origin. It was often supported by references to the Old Testament, which contains a similar view in an unreflective form. It is found in most of the great political writers of the sixteenth century; in Buchanan, and in the writings of James I: it persists into the seventeenth in the works of Grotius and Puffendorf. Grotius is sometimes held to have stated the theory so as to admit both forms of contract; but it is clear that he is only thinking of the first form as admitting democratic as well as monarchical government. We find it put very clearly by the Convention Parliament of 1688, which accuses James II of having "endeavoured to subvert the constitution of the kingdom by breaking the original contract between king and people." While Hobbes, on the side of the royalists, is maintaining the contract theory in its second form, the Parliamentarian Algernon Sidney adheres to the idea of a contract between the people and the government. In this form, the theory clearly admits of opposite interpretations. It may be held that the people, having given itself up once for all to its rulers, has nothing more to ask of them, and is bound to submit to any usage they may choose to inflict. This, however, is not the implication most usually drawn from it. The theory, in this form, originated with theologians who were also lawyers. Their view of a contract implied mutual obligations; they regarded the ruler as bound, by its terms, to govern constitutionally. The old idea that a king must not violate the sacred customs of the realm passes easily into the doctrine that he must not violate the terms of the original contract between himself and his people. Just as in the days of the Norman kings, every appeal on the part of the people for more liberties was couched in the form of a demand that the customs of the "good old times" of Edward the Confessor should be respected, so in the seventeenth century every act of popular assertion or resistance was stated as an appeal to the king not to violate the contract. The demand was a good popular cry, and it seemed to have the theorists behind it. Rousseau gives his refutation of this view, which he had, in the _Discourse on Inequality_, maintained in passing, in the sixteenth chapter of the third book of the _Social Contract._ (See also Book I, chap, iv, init.) His attack is really concerned also with the theory of Hobbes, which in some respects resembles, as we shall see, this first view; but, in form at least, it is directed against this form of contract. It will be possible to examine it more closely, when the second view has been considered.