[165c]
if you see his cloak with the eye that is covered?
Theaetetus
I shall say, I think, “Not with that eye, but with the other.”
Socrates
Then you see and do not see the same thing at the same time?
Theaetetus
After a fashion.
Socrates
“That,” he will reply, “is not at all what I want, and I did not ask about the fashion, but whether you both know and do not know the same thing. Now manifestly you see that which you do not see. But you have agreed that seeing is knowing and not seeing is not knowing. Very well; from all this, reckon out what the result is.”