POLITICS.--One of the originalities in Plato is that he busies himself with politics--that is, that he makes politics a part of philosophy, which had barely been thought of before him (I say _barely_, because Pythagoras was a legislator), but which has ever since been taken into consideration. Plato is aristocratic, no doubt because his thought is generally such, independently of circumstances, also, perhaps, because he attributed the great misfortunes of his country which he witnessed to the Athenian democracy; then yet again, perhaps, because that Athenian democracy had been violently hostile and sometimes cruel to philosophers, and more especially to his own master. According to Plato, just as man has three souls, or if it be preferred, three centres of activity, which govern him--intelligence in the head, courage in the heart, and appetite in the bowels--even so the city is composed of three classes: wise and learned men at the top, the warriors below, and the artisans and slaves lower still. The wise men will govern: accordingly the nations will never be happy save when philosophers are kings, or when kings are philosophers. The warriors will fight to defend the city, never as aggressors. They will form a caste--poor, stern to itself, and redoubtable. They will have no individual possessions; everything will be in common, houses, furniture, weapons, wives even, and children. The people, finally, living in strict equality, either by equal partition of land, or on land cultivated in common, will be strictly maintained in probity, honesty, austerity, morality, sobriety, and submissiveness. All arts, except military music and war dances, will be eliminated from the city. She needs neither poets nor painters not yet musicians, who corrupt morals by softening them, and by making all feel the secret pang of voluptuousness. All theories, whether aristocratic or tending more or less to communism, are derived from the politics of Plato either by being evolved from them or by harking back to them. THE MASTER OF THE IDEALISTIC PHILOSOPHY.--Plato is for all thinkers, even for his opponents, the greatest name in human philosophy. He is the supreme authority of the idealistic philosophy--that is, of all philosophy which believes that ideas govern the world, and that the world is progressing towards a perfection which is somewhere and which directs and attracts it. For those even who are not of his school, Plato is the most prodigious of all the thinkers who have united psychological wisdom, dialectical strength, the power of abstraction and creative imagination, which last in him attains to the marvellous. CHAPTER V ARISTOTLE A Man of Encyclopedic Learning; as Philosopher, more especially Moralist and Logician.