182–183
Socrates
SOC. And yet perception is knowledge, as Theaetetus and I said.
Theodorus
THEO. Yes, you did say that.
Socrates
SOC. Then when we were asked what is knowledge? we answered no more what knowledge is than what not-knowledge is.
Theodorus
THEO. So it seems.
Socrates
SOC. This would be a fine result of the correction of our answer, when we were so eager to show that all things are in motion, just for the purpose of making that answer prove to be correct. But this, I think, did prove to be true, that if all things are in motion, every answer to any question whatsoever is equally correct, and we may say it is thus or not thus—or, if you prefer, becomes thus, to avoid giving them fixity by using the word is.
Theodorus
THEO. You are right.
Socrates
SOC. Except, Theodorus, that I said thus, and not thus; but we ought not even to say thus; for thus would no longer be in motion; nor, again, not thus. For there is no motion in this either; but some other expression must be supplied for those who maintain this doctrine, since now they have, according to their own hypothesis, no words, unless it be perhaps the word nohow. That might be most fitting for them, since it is indefinite.
Theodorus
THEO. At any rate that is the most appropriate form of speech for them.
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