SOCRATES: I will tell you; the kingly art was identified by us with the
political.

CRITO: Well, and what came of that?

SOCRATES: To this royal or political art all the arts, including the art
of the general, seemed to render up the supremacy, that being the only one
which knew how to use what they produce. Here obviously was the very art
which we were seeking--the art which is the source of good government, and
which may be described, in the language of Aeschylus, as alone sitting at
the helm of the vessel of state, piloting and governing all things, and
utilizing them.

CRITO: And were you not right, Socrates?

SOCRATES: You shall judge, Crito, if you are willing to hear what
followed; for we resumed the enquiry, and a question of this sort was
asked: Does the kingly art, having this supreme authority, do anything for
us? To be sure, was the answer. And would not you, Crito, say the same?

CRITO: Yes, I should.

SOCRATES: And what would you say that the kingly art does? If medicine
were supposed to have supreme authority over the subordinate arts, and I
were to ask you a similar question about that, you would say--it produces
health?

CRITO: I should.