of philosophers, who probably accommodated a good deal their views of primitive history to their own notions of good government. Plato further insists on applying to the guardians of his state a series of tests by which all those who fell short of a fixed standard were either removed from the governing body, or not admitted to it; and this 'academic' discipline did to a certain extent prevail in Greek states, especially in Sparta. He also indicates that the system of caste, which existed in a great part of the ancient, and is by no means extinct in the modern European world, should be set aside from time to time in favour of merit. He is aware how deeply the greater part of mankind resent any interference with the order of society, and therefore he proposes his novel idea in the form of what he himself calls a 'monstrous fiction.' (Compare the ceremony of preparation for the two 'great waves' in Book v.) Two principles are indicated by him: first, that there is a distinction of ranks dependent on circumstances prior to the individual: second, that this distinction is and ought to be broken through by personal qualities. He adapts mythology like the Homeric poems to the wants of the state, making 'the Phoenician tale' the vehicle of his ideas. Every Greek state had a myth respecting its own origin; the Platonic republic may also have a tale of earthborn men. The gravity and verisimilitude with which the tale is told, and the analogy of Greek tradition, are a sufficient verification of the 'monstrous falsehood.' Ancient poetry had spoken of a gold and silver and brass and iron age succeeding one another, but Plato supposes these differences in the natures of men to exist together in a single state. Mythology supplies a figure under which the lesson may be taught (as Protagoras says, 'the myth is more interesting'), and also enables Plato to touch lightly on new principles without going into details. In this passage he shadows forth a general truth, but he does not tell us by what steps the transposition of ranks is to be effected. Indeed throughout the Republic he allows the lower ranks to fade into the distance. We do not know whether they are to carry arms, and whether in the fifth book they are or are not included in the communistic regulations respecting property and marriage. Nor is there any use in arguing strictly either from a few chance words, or from the silence of Plato, or in drawing inferences which were beyond his vision. Aristotle, in his criticism on the position of the lower classes, does not perceive that the poetical creation is 'like the air, invulnerable,' and cannot be penetrated by the shafts of his logic (Pol.).
6. Two paradoxes which strike the modern reader as in the highest degree fanciful and ideal, and which suggest to him many reflections, are to be found in the third book of the Republic: first, the great power of music, so much beyond any influence which is experienced by us in modern times, when the art or science has been far more developed, and has found the secret of harmony, as well as of melody; secondly, the indefinite and almost absolute control which the soul is supposed to exercise over the body.
In the first we suspect some degree of exaggeration, such as we may also observe among certain masters of the art, not unknown to us, at the present day. With this natural enthusiasm, which is felt by a few only, there seems to mingle in Plato a sort of Pythagorean reverence for numbers and numerical proportion to which Aristotle is a stranger. Intervals of sound and number are to him sacred things which have a law of their own, not dependent on the variations of sense. They rise above sense, and become a connecting link with the world of ideas. But it is evident that Plato is describing what to him appears to be also a fact. The power of a simple and characteristic melody on the impressible mind of the Greek is more than we can easily appreciate. The effect of national airs may bear some comparison with it. And, besides all this, there is a confusion between the harmony of musical notes