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Str. No other. Come then, let us now summarize the matter by saying that sophistry has appeared a second time as that part of acquisitive art, art of exchange, of trafficking, of merchandising, of soul-merchandising which deals in words and knowledge, and trades in virtue.
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Theaet. Very well.
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Str. But there is a third case: If a man settled down here in town and proposed to make his living by selling these same wares of knowledge, buying some of them and making others himself, you would, I fancy, not call him by any other name than that which you used a moment ago.
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Theaet. Certainly not.
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Str. Then also that part of acquisitive art which proceeds by exchange, and by sale, whether as mere retail trade or the sale of one’s own productions, no matter which, so long as it is of the class of merchandising in knowledge, you will always, apparently, call sophistry.
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Theaet. I must do so, for I have to follow where the argument leads.
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Str. Let us examine further and see if the class we are now pursuing has still another aspect, of similar nature.
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Theaet. Of what nature?
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Str. We agreed that fighting was a division of acquisitive art.
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Theaet. Yes, we did.
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Str. Then it is quite fitting to divide it into two parts.
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Theaet. Tell what the parts are.
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Str. Let us call one part of it the competitive and the other the pugnacious.
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Theaet. Agreed.
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Str. Then it is reasonable and fitting to give to that part of the pugnacious which consists of bodily contests some such name as violent.
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Theaet. Yes.
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Str. And what other name than controversy shall we give to the contests of words?
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Theaet. No other.
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Str. But controversy must be divided into two kinds.
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Theaet. How?
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Str. Whenever long speeches are opposed by long speeches on questions of justice and injustice in public, that is forensic controversy.
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Theaet. Yes.
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Str. But that which is carried on among private persons and is cut up into little bits by means of questions and their answers, we are accustomed to call argumentation, are we not?
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Theaet. We are.