So far, there is no great difficulty; but in discussing the infallibility of the General Will we are on more dangerous ground. Rousseau's treatment here clearly oscillates between regarding it as a purely ideal conception, to which human institutions can only approximate, and holding it to be realised actually in every republican State, _i.e._ wherever the people is the Sovereign in fact as well as in right. Book IV, chap, ii is the most startling passage expressing the latter view. "When in the popular assembly a law is proposed, what the people is asked is not exactly whether it accepts or rejects the proposal, but whether it is in conformity with the general will, which is its will.... When, therefore, the opinion that is contrary to my own prevails, this proves neither more nor less than that I was mistaken, and that what I thought to be the general will was not so." On his own principles laid down elsewhere, Rousseau would have to admit that it proves nothing of the sort, except in so far as the other voters have been guided by the general interest. Though he sometimes affirms the opposite, there is no security on his principles that the will of the majority will be the General Will. At the most it can only be said that there is a greater chance of its being general than of the will of any selected class of persons not being led away by corporate interests. The justification of democracy is not that it is always right, even in intention, but that it is more general than any other kind of supreme power. Fundamentally, however, the doctrine of the General Will is independent of these contradictions. Apart from Kant's narrow and rigid logic, it is essentially one with his doctrine of the autonomy of the will. Kant takes Rousseau's political theory, and applies it to ethics as a whole. The germ of mis application is already found in Rousseau's own work; for he protests more than once against attempts to treat moral and political philosophy apart, as distinct studies, and asserts their absolute unity. This is brought out clearly in the _Social Contract_ (Book I, chap, viii), where he is speaking of the change brought about by the establishment of society. "The passage from the state of nature to the civil state produces a very remarkable change in man, by substituting justice for instinct in his conduct, and giving his actions the morality they had hitherto lacked.... What man loses by the social contract is his natural liberty and an unlimited right to everything he tries to get and succeeds in getting; what he gains is civil liberty ... which is limited by the general will.... We might, over and above all this, add to what man acquires in the civil state _moral liberty, which alone makes him truly master of himself; for the mere impulse of appetite is slavery, while obedience to a law which we prescribe to ourselves is liberty._"