Pietro Bembo, Letter to Pico della Mirandola (1530)
We cannot say the same thing about Vergil, namely, that he is fit to be emulated by everyone who takes pleasure in his poems. For those who write elegies or lyric poems, or those who are held by an enthusiasm for writing comedies or tragedies, will find very little help from the Vergilian structure, meter, or poetic program. Rather, they should imitate those whom they consider to be the chief poets in each individual genre of writing, and should give themselves wholly to the project of following them and even overcoming them. To be sure, I myself have done this. In writing my elegies, I imitated the poet who seemed to me to be the best in that genre. But for the poet who commits himself to heroic verse, then surely Vergil is to be learned, drunk in, and expressed as much as possible, as I had once personally told you was my opinion on the matter.
De Virgilio vero non idem possumus dicere, ut idoneus sit, quem, qui carminibus delectantur, imitari omnes queant. Neque enim qui aut elegos aut lyricos conficiunt versus, quique vel comoediarum vel tragoediarum scribendarum studio detinentur, horum ullos Virgiliana carminum structura, numerus, ratio ipsa multum iuvabit. Sed imitentur ii quidem eos quos habent principes singulis in scriptorum generibus singulos atque illis assequendis superandisque dedant. Quod profecto nos aliquando fecimus, ut in elegis pangendis, qui optimus eo in genere poematis nobis visus est, eum imitaremur. Heroicis autem conscribendis carminibus qui se dederit, huic certe erit Virgilius ediscendus, ebibendus et quam maxime fieri poterit exprimendus, quemadmodum coram tibi dixeram mihi videri.