Plutarch Quomodo adolescens poetas audire debeat 7

[7] There is a fact, however, which we must recall to the minds of the young not once merely, but over and over again, by pointing out to them that while poetry, inasmuch as it has an imitative basis, employs embellishment and glitter in dealing with the actions and characters that form its groundwork, yet it does not forsake the semblance of truth, since imitation depends upon plausibility for its allurement. This is the reason why the imitation that does not show an utter disregard of the truth brings out, along with the actions, indications of both vice and virtue commingled; as is the case with that of Homer, which emphatically says good-bye to the Stoics, who will have it that nothing base can attach to virtue, and nothing good to vice, but that the ignorant man is quite wrong in all things, while, on the other hand, the man of culture is right in everything. These are the doctrines that we hear in the schools; but in the actions and in the life of most men, according to Euripides, ¹ But when poetic art is divorced from the truth, then chiefly it employs variety and diversity. For it is the sudden changes that give to its stories the elements of the emotional, the surprising, and the unexpected, and these are attended by very great astonishment and enjoyment; but sameness is unemotional and prosaic. Therefore poets do not represent the same people as always victorious or prosperous or successful in everything; no, not even the gods, when they project themselves into human activities, are represented in the poets’ usage as free from emotion or fault, that the perturbing and exciting element in the poetry shall nowhere become idle and dull, for want of danger and struggle.