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.

STRANGER: Then that part of the acquisitive art which exchanges, and of
exchange which either sells a man's own productions or retails those of
others, as the case may be, and in either way sells the knowledge of