Page:The Dialogues of Plato v. 1.djvu/545

Ion. Yes.

Soc. You would argue, as I should, that when one art is of one kind of knowledge and another of another, they are different?

Ion. Yes.

Soc. Yes, surely; for if the subject of knowledge were the same, there would be no meaning in saying that the arts were different,—if they both gave the same knowledge. For example, I know that here are five fingers, and you know the same. And if I were to ask whether I and you became acquainted with this fact by the help of the same art of arithmetic, you would acknowledge that we did?

Ion. Yes.

Every art has a distinct subject; and he who has no knowledge of an art can form no judgement of it. ⁵³⁸ Soc. Tell me, then, what I was intending to ask you, whether this holds universally? Must the same art have the same subject of knowledge, and different arts other subjects of knowledge?

Ion. That is my opinion, Socrates.

Soc. Then he who has no knowledge of a particular art will have no right judgment of the sayings and doings of that art?

Ion. Very true.

Soc. Then which will be a better judge of the lines which you were reciting from Homer, you or the charioteer?

Ion. The charioteer.

Soc. Why, yes, because you are a rhapsode and not a charioteer.

Ion. Yes.

Soc. And the art of the rhapsode is different from that of the charioteer?

Ion. Yes.

Soc. And if a different knowledge, then a knowledge of different matters?

Ion. True.

Soc. You know the passage in which Hecamede, the concubine of Nestor, is described as giving to the wounded Machaon a posset, as he says,