Jowett: merchandise of the soul

Str. 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 ? SOPHIST

Str. 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. SOPHIST