Plato Euthydemus 276

  While he was saying this, Cleinias made his reply, so that I was unable even to advise 276a the boy to be wary: he replied that it was the wise who were the learners.
  Then Euthydemus asked: And are there persons whom you call teachers, or not?
  He agreed that there were.
  And the teachers of the learners are teachers in the same way as your lute-master and your writing-master, I suppose, were teachers of you and the other boys, while you were pupils?
  He assented.
  Now, of course, when you were learning, you did not yet know the things you were learning? 276b
  No, he said.
  So were you wise, when you did not know those things?
  No, to be sure, he said.
  Then if not wise, foolish?
  Certainly.
  So when you learnt what you did not know, you learnt while being foolish.
  To this the lad nodded assent.
  Hence it is the foolish who learn, Cleinias, and not the wise, as you suppose.
  When he had thus spoken, all those followers of Dionysodorus 276c and Euthydemus raised a cheer and a laugh, like a chorus at the signal of their director; and before the boy could fairly and fully recover his breath Dionysodorus took up the cudgels and said: Well now, Cleinias, whenever your writing-master dictated from memory, which of the boys learnt the piece recited, the wise or the foolish?
  The wise, said Cleinias.
  So it is the wise who learn, and not the foolish: hence the answer you gave just now to Euthydemus was a bad one. 276d
  Thereupon arose a great deal of laughter and loud applause from the pair’s adorers, in admiration of their cleverness; while we on our side were dismayed and held our peace. Then Euthydemus, observing our dismay, and seeking to astonish us still further, would not let the boy go, but went on questioning him and, like a skilful dancer, gave a twofold twist to his questions on the same point: Now, do the learners learn what they know, he asked, or what they do not?
  Then Dionysodorus whispered to me again softly: 276e Here comes a second one, Socrates, just like the first.
  Heavens! I replied: surely the first question served you well enough.
  All our questions, Socrates, he said, are like that; they leave no escape.
  And consequently, as it seems to me, I remarked, you have this high repute among your disciples.