Every Poem must necessarily be a perfect Unity, but why Homer's is peculiarly so, I cannot tell; he has told the story of Bellerophon & omitted the Judgment of Paris, which is not only a part, but a principal part, of Homer's subject.
But when a Work has Unity, it is as much in a Part as in the Whole: the Torso is as much a Unity as the Laocoon.
As Unity is the cloke of folly, so Goodness is the cloke of knavery. Those who will have Unity exclusively in Homer come out with a Moral like a sting in the tail. Aristotle says Characters are either Good or Bad; now Goodness or Badness has nothing to do with Character: an Apple tree, a Pear tree, a Horse, a Lion are Characters, but a Good Apple tree or a Bad is an Apple tree still; a Horse is not more a Lion for being a Bad Horse: that is its Character: its Goodness or Badness is another consideration.
It is the same with the Moral of a whole Poem as with the Moral Goodness of its parts. Unity & Morality are secondary considerations, & belong to Philosophy & not to Poetry, to Exception & not to Rule, to Accident & not to Substance; the Ancients call'd it eating of the tree of good & evil.
The Classics! it is the Classics, & not Goths nor Monks, that Desolate Europe with Wars.
Sacred Truth has pronounced that Greece & Rome, as Babylon & Egypt, so far from being parents of Arts & Sciences as they pretend, were destroyers of all Art. Homer, Virgil & Ovid confirm this opinion & make us reverence The Word of God, the only light of antiquity that remains unperverted by War. Virgil in the AEneid, Book vi, line 848, says `Let others study Art: Rome has somewhat better to do, namely War & Dominion.'
Rome & Greece swept Art into their maw & destroy'd it; a Warlike State never can produce Art. It will Rob & Plunder & accumulate into one place, & Translate & Copy & Buy & Sell & Criticise, but not Make. Grecian is Mathematic Form: Gothic is Living Form. Mathematic Form is Eternal in the Reasoning Memory: Living Form is Eternal Existence.