Our poets have left no species[ of the art] unattempted; nor have those of them merited the least honor, who dared to forsake the footsteps of the Greeks, and celebrate domestic facts; whether they have instructed us in tragedy, of comedy. Nor would Italy be raised higher by valor and feats of arms, than by its language, did not the fatigue and tediousness of using the file disgust every one of our poets. Do you, the decendants of Pompilius, reject that poem, which many days and many a blot have not ten times subdued to the most perfect accuracy. Because Democritus believes that genius is more successful than wretched art, and excludes from Helicon all poets who are in their senses, a great number do not care to part with their nails or beard, frequent places of solitude, shun the baths. For he will acquire,[ he thinks,] the esteem and title of a poet, if he neither submits his head, which is not to be cured by even three Anticyras, to Licinius the barber. What an unlucky fellow am I, who am purged for the bile in spring- time! Else nobody would compose better poems; but the purchase is not worth the expense. Therefore I will serve instead of a whetstone, which though not able of itself to cut, can make steel sharp: so I, who can write no poetry myself, will teach the duty and business[ of an author]; whence he may be stocked with rich materials; what nourishes and forms the poet; what gives grace, what not; what is the tendency of excellence, what that of error. 