[56] But I must now proceed to examine the argument which I postponed just now, if indeed things that are so evident stand in need of any demonstration; but, indeed, proofs are necessary on account of the inventors of fables who, filling all life with their falsehoods, have utterly driven truth out of the land, and have not merely banished it from cities and houses, but have even deprived each separate individual of that most valuable possession, and, for the purpose of alluring his sight, have invented metres and rhythm as a bait and a snare, by which they cajole the ears of fools, just as ugly and shapeless courtesans allure the eyes by necklaces and spurious ornaments in the absence of all genuine beauty,