I propose to treat of Poetry in itself
and of its various kinds, noting the essential quality
of each; to inquire into the structure of the plot
as requisite to a good poem; into the number and nature
of the parts of which a poem is composed; and similarly
into whatever else falls within the same inquiry.
Following, then, the order of nature, let us begin
with the principles which come first.
Epic poetry and Tragedy, Comedy also
and Dithyrambic: poetry, and the music of the
flute and of the lyre in most of their forms, are all
in their general conception modes of imitation.
They differ, however, from one: another in three
respects,—the medium, the objects, the manner
or mode of imitation, being in each case distinct.
For as there are persons who, by conscious
art or mere habit, imitate and represent various objects
through the medium of colour and form, or again by
the voice; so in the arts above mentioned, taken as
a whole, the imitation is produced by rhythm, language,
or ‘harmony,’ either singly or combined.
Thus in the music of the flute and
of the lyre, ‘harmony’ and rhythm alone
are employed; also in other arts, such as that of the
shepherd’s pipe, which are essentially similar
to these. In dancing, rhythm alone is used without
‘harmony’; for even dancing imitates character,
emotion, and action, by rhythmical movement.
There is another art which imitates
by means of language alone, and that either in prose
or verse—which, verse, again, may either
combine different metres or consist of but one kind—but
this has hitherto been without a name. For there
is no common term we could apply to the mimes of Sophron
and Xenarchus and the Socratic dialogues on the one
hand; and, on the other, to poetic imitations in iambic,
elegiac, or any similar metre. People do, indeed,
add the word ‘maker’ or ‘poet’
to the name of the metre, and speak of elegiac poets,
or epic (that is, hexameter) poets, as if it were
not the imitation that makes the poet, but the verse
that entitles them all indiscriminately to the name.
Even when a treatise on medicine or natural science
is brought out in verse, the name of poet is by custom
given to the author; and yet Homer and Empedocles have
nothing in common but the metre, so that it would be
right to call the one poet, the other physicist rather
than poet. On the same principle, even if a writer
in his poetic imitation were to combine all metres,
as Chaeremon did in his Centaur, which is a medley
composed of metres of all kinds, we should bring him
too under the general term poet. So much then
for these distinctions.
There are, again, some arts which
employ all the means above mentioned, namely, rhythm,
tune, and metre. Such are Dithyrambic and Nomic
poetry, and also Tragedy and Comedy; but between them
the difference is, that in the first two cases these
means are all employed in combination, in the latter,
now one means is employed, now another.
Such, then, are the differences of
the arts with respect to the medium of imitation.