STRANGER: And all the arts which were just now mentioned are characterized
by this power of producing?

THEAETETUS: They are.

STRANGER: Then let us sum them up under the name of productive or creative
art.

THEAETETUS: Very good.

STRANGER: Next follows the whole class of learning and cognition; then
comes trade, fighting, hunting. And since none of these produces anything,
but is only engaged in conquering by word or deed, or in preventing others
from conquering, things which exist and have been already produced--in each
and all of these branches there appears to be an art which may be called
acquisitive.

THEAETETUS: Yes, that is the proper name.

STRANGER: Seeing, then, that all arts are either acquisitive or creative,
in which class shall we place the art of the angler?

THEAETETUS: Clearly in the acquisitive class.

STRANGER: And the acquisitive may be subdivided into two parts: there is
exchange, which is voluntary and is effected by gifts, hire, purchase; and
the other part of acquisitive, which takes by force of word or deed, may be
termed conquest?

THEAETETUS: That is implied in what has been said.