He is aware how deeply the greater part of {liii} 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. 2, 5, 18 foll.). 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 {liv} 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.