Mortal works must perish: much less can the honor and elegance of language be long-lived. Many words shall revive, which now have fallen off; and many which are now in esteem shall fall off, if it be the will of custom, in whose power is the decision and right and standard of language. Homer has instructed us in what measure the achievements of kings, and chiefs, and direful war might be written. Plaintive strains originally were appropriated to the unequal numbers [of the elegiac]: afterward [love and] successful desires were included. Yet what author first published humble elegies, the critics dispute, and the controversy still waits the determination of a judge. Rage armed Archilochus with the iambic of his own invention. The sock and the majestic buskin assumed this measure as adapted for dialogue, and to silence the noise of the populace, and calculated for action. To celebrate gods, and the sons of gods, and the victorious wrestler, and the steed foremost in the race, and the inclination of youths, and the free joys of wine, the muse has alotted to the lyre. If I am incapable and unskilful to observe the distinction described, and the complexions of works [of genius], why am I accosted by the name of "Poet?" Why, out of false modesty, do I prefer being ignorant to being learned? A comic subject will not be handled in tragic verse: in like manner the banquet of Thyestes will not bear to be held in familiar verses, and such as almost suit the sock. Let each peculiar species [of writing] fill with decorum its proper place. Nevertheless sometimes even comedy exalts her voice, and passionate Chremes rails in a tumid strain: and a tragic writer generally expresses grief in a prosaic style. Telephus and Peleus, when they are both in poverty and exile, throw aside their rants and gigantic expressions if they have a mind to move the heart of the spectator with their complaint. It is not enough that poems be beautiful; let them be tender and affecting, and bear away the soul of the auditor whithersoever they please. As the human countenance smiles on those that smile, so does it sympathize with those that weep. If you would have me weep you must first express the passion of grief yourself; then, Telephus or Peleus, your misfortunes hurt me: if you pronounce the parts assigned you ill, I shall either fall asleep or laugh.