According to Hegel,[147] the Platonic polity, so far from being an impracticable dream, had already found its realisation in Greek life, and did but give a purer expression to the constitutive principle of every ancient commonwealth. There are, he tells us, three stages in the moral development of mankind. The first is purely objective. It represents a régime where rules of conduct are entirely imposed from without; they are, as it were, embodied in the framework of society; they rest, not on reason and conscience, but on authority and tradition; they will not suffer themselves to be questioned, for, being unproved, a doubt would be fatal to their very existence. Here the individual is completely sacrificed to the State; but in the second or subjective stage he breaks loose, asserting the right of his private judgment and will as against the established order of things. This revolution was, still according to Hegel, begun by the Sophists and Socrates. It proved altogether incompatible with the spirit of Greek civilisation, which it ended by shattering to pieces. The subjective principle found an appropriate expression in Christianity, which attributes an infinite importance to the individual soul; and it appears also in the political philosophy of Rousseau. We may observe that it corresponds very nearly to what Auguste Comte meant by the metaphysical period. The modern State reconciles both principles, allowing the individual his full development, and at the same time incorporating him with a larger whole, where, for the first time, he finds his own reason fully realised. Now, Hegel looks on the Platonic republic as a reaction against the subjective individualism, the right of private judgment, the self-seeking impulse, or whatever else it is to be called, which was fast eating into the heart of Greek civilisation. To counteract this fatal tendency, Plato goes back to the constitutive principle of Greek society—that is to say, the omnipotence, or, in Benthamite parlance, omnicompetence, of the State; exhibiting it, in ideal perfection, as the suppression of individual liberty under every form, more especially the fundamental forms of property, marriage, and domestic life.