Euthydemus, 290b–c
Cleinias: Nothing in the actual skill of hunting goes any further than hunting down and subduing; and whenever hunters subdue whatever they are hunting, they are not able to make use of it: instead the hunters and the anglers hand it over to the cooks. The same goes for geometers, astronomers and calculators, since they too are hunters. For in each of these cases they do not produce their own diagrams, instead they make discoveries. And since they themselves do not know how to make use of them, but only how to hunt them down, they hand over, of course, to the dialecticians to make use of the discoveries; those among them, at any rate, who are not utterly stupid.
Socrates: So be it, my handsome and wise Cleinias, said I; is this how matters stand?