_Ion._ Yes, by Jupiter, Socrates, I am delighted with listening to you wise men. _Socrates._ It is you who are wise, my dear Ion; you rhapsodists, actors, and the authors of the poems you recite. I, like an unprofessional and private man, can only speak the truth. Observe how common, vulgar, and level to the comprehension of any one, is the question which I now ask relative to the same consideration belonging to one entire art. Is not painting an art whole and entire? _Ion._ Certainly. _Socrates._ Did you ever know a person competent to judge of the paintings of Polygnotus, the son of Aglaophon, and incompetent to judge of the production of any other painter; who, on the supposition of the works of other painters being exhibited to him, was wholly at a loss, and very much inclined to go to sleep, and lost all faculty of reasoning on the subject; but when his opinion was required of Polygnotus, or any one single painter you please, awoke, paid attention to the subject, and discoursed on it with great eloquence and sagacity? _Ion._ Never, by Jupiter! _Socrates._ Did you ever know any one very skilful in determining the merits of Dædalus, the son of Metion, Epius, the son of Panopus, Theodorus the Samian, or any other great sculptor, who was immediately at a loss, and felt sleepy the moment any other sculptor was mentioned? _Ion._ I never met with such a person certainly. _Socrates._ Nor, do I think, that you ever met with a man professing himself a judge of poetry and rhapsody, and competent to criticise either Olympus, Thamyris, Orpheus, or Phemius of Ithaca, the rhapsodist, who, the moment he came to Ion the Ephesian, felt himself quite at a loss, and utterly incompetent to judge whether he rhapsodised well or ill. _Ion._ I cannot refute you, Socrates, but of this I am conscious to myself: that I excel all men in the copiousness and beauty of my illustrations of Homer, as all who have heard me will confess, and with respect to other poets, I am deserted of this power. It is for you to consider what may be the cause of this distinction.