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SOC. So, Theodorus, we have got rid of your friend, and we do not yet concede to him that every man is a measure of all things, unless he be a sensible man; and we are not going to concede that knowledge is perception, at least not by the theory of universal motion, unless Theaetetus here has something different to say.
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THEO. An excellent idea, Socrates; for now that this matter is settled, I too should be rid of the duty of answering your questions according to our agreement, since the argument about Protagoras is ended.
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THEAET. No, Theodorus, not until you and Socrates have discussed those who say all things are at rest, as you proposed just now.
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THEO. A young man like you, Theaetetus, teaching your elders to do wrong by breaking their agreements! No; prepare to answer Socrates yourself for the rest of the argument.
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THEAET. I will if he wishes it. But I should have liked best to hear about the doctrine I mentioned.
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THEO. Calling Socrates to an argument is calling cavalry into an open plain. A proverbial expression. An open plain is just what cavalry desires. Just ask him a question and you shall hear.
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SOC. Still I think, Theodorus, I shall not comply with the request of Theaetetus.
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THEO. Why will you not comply with it?