driver or groom of a single ox or horse; he is rather to be compared with
the keeper of a drove of horses or oxen.

YOUNG SOCRATES: Yes, I see, thanks to you.

STRANGER: Shall we call this art of tending many animals together, the art
of managing a herd, or the art of collective management?

YOUNG SOCRATES: No matter;--whichever suggests itself to us in the course
of conversation.

STRANGER: Very good, Socrates; and, if you continue to be not too
particular about names, you will be all the richer in wisdom when you are
an old man. And now, as you say, leaving the discussion of the name,--can
you see a way in which a person, by showing the art of herding to be of two
kinds, may cause that which is now sought amongst twice the number of
things, to be then sought amongst half that number?

YOUNG SOCRATES: I will try;--there appears to me to be one management of
men and another of beasts.

STRANGER: You have certainly divided them in a most straightforward and
manly style; but you have fallen into an error which hereafter I think that
we had better avoid.

YOUNG SOCRATES: What is the error?

STRANGER: I think that we had better not cut off a single small portion
which is not a species, from many larger portions; the part should be a
species. To separate off at once the subject of investigation, is a most