SOCRATES: Yes, Ion, and you are right also. And as I have selected from
the Iliad and Odyssee for you passages which describe the office of the
prophet and the physician and the fisherman, do you, who know Homer so much
better than I do, Ion, select for me passages which relate to the rhapsode
and the rhapsode's art, and which the rhapsode ought to examine and judge
of better than other men.

ION: All passages, I should say, Socrates.

SOCRATES: Not all, Ion, surely. Have you already forgotten what you were
saying? A rhapsode ought to have a better memory.

ION: Why, what am I forgetting?

SOCRATES: Do you not remember that you declared the art of the rhapsode to
be different from the art of the charioteer?

ION: Yes, I remember.

SOCRATES: And you admitted that being different they would have different
subjects of knowledge?

ION: Yes.

SOCRATES: Then upon your own showing the rhapsode, and the art of the
rhapsode, will not know everything?

ION: I should exclude certain things, Socrates.