The Republic by Plato Part 10 Page 41

things, and that you should take him up again and again and get to know him and regulate your whole life according to him, we may love and honour those who say these things — they are excellent people, as far as their lights extend; and we are ready to acknowledge that Homer is the greatest of poets and first of tragedy writers; but we must remain firm in our conviction that hymns to the gods and praises of famous men are the only poetry which ought to be admitted into our State.

For if you go beyond this and allow the honeyed muse to enter, either in epic or lyric verse, not law and the reason of mankind, which by common consent have ever been deemed best, but pleasure and pain will be the rulers in our State.

That is most true, he said.