STRANGER: Of this merchandise of the soul, may not one part be fairly termed the art of display? And there is another part which is certainly not less ridiculous, but being a trade in learning must be called by some name germane to the matter?
THEAETETUS: Certainly.
STRANGER: The latter should have two names,—one descriptive of the sale of the knowledge of virtue, and the other of the sale of other kinds of knowledge.
THEAETETUS: Of course.
STRANGER: The name of art-seller corresponds well enough to the latter; but you must try and tell me the name of the other.
THEAETETUS: He must be the Sophist, whom we are seeking; no other name can possibly be right.
STRANGER: No other; and so this trader in virtue again turns out to be our friend the Sophist, whose art may now be traced from the art of acquisition through exchange, trade, merchandise, to a merchandise of the soul which is concerned with speech and the knowledge of virtue.
THEAETETUS: Quite true.
STRANGER: And there may be a third reappearance of him;—for he may have settled down in a city, and may fabricate as well as buy these same wares, intending to live by selling them, and he would still be called a Sophist?
THEAETETUS: Certainly.