The guinea (as in other trades) From every hand alike persuades.

Mad Cacus so, whom like ill fate persuades, The herd of fair Alcmena's seed invades, 30 Who for revenge, and mortals' glad relief, Sack'd the dark cave and crush'd that horrid thief.

Making Horace a point of departure, Daniello, in 1536, says that the function of the poet is to teach and delight, but more than thatto persuade.