Plato, who excluded Homer from his ideal common-wealth.
Stn Caligula, Chapter 34: Caligula as a monster (Cont.)

Finding the Cyrenians harassed by long tyrannies and wars, he composed their troubles, and settled their government; putting the city in mind of that saying which Plato once had oracularly uttered of them, who, being requested to prescribe laws to them, and mold them into some sound form of government, made answer, that it was a hard thing to give laws to the Cyrenians, abounding, as they did, in wealth and plenty. For nothing is more intractable than man when in felicity, nor anything more docile, when he has been reduced and humbled by fortune.
Plt Lucullus Chapter 2: Lucullus assists Sulla