“I found that the men most in repute were all but the most foolish; and that others less esteemed were really wiser and better. I will tell you the tale of my wanderings and of the ‘Herculean’ labors, as I may call them, which I endured only to find at last the oracle irrefutable. After the politicians, I went to the poets; tragic, dithyrambic, and all sorts. And there, I said to myself, you will be instantly detected; now you will find out that you are more ignorant than they are. Accordingly, I took them some of the most elaborate passages in their own writings, and asked what was the meaning of them—thinking that they would teach me something. Will you believe me? I am almost ashamed to confess the truth, but I must say there is hardly a person present who would not have talked better about their poetry than they did themselves. Then I knew that not by wisdom do poets write poetry, but by a sort of genius and inspiration; they are like diviners and soothsayers who also say many fine things, but do not understand the meaning of them. The poets appeared to me to be much in the same case; and I further observed that upon the strength of their poetry they believed themselves to be the wisest of men in other things in which they were not wise. So I departed, conceiving myself to be superior to them for the same reason I was superior to the politicians.”
from "Apology" by Plato, translated by Benjamin Jowett.