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Then medicine does not consider the interest of medicine, but the

interest of the body?

True, he said.

Nor does the art of horsemanship consider the interests of the

art of horsemanship, but the interests of the horse; neither do

any other arts care for themselves, for they have no needs; they

care only for that which is the subject of their art?

True, he said.

But surely, Thrasymachus, the arts are the superiors and rulers

of their own subjects?

To this he assented with a good deal of reluctance.

Then, I said, no science or art considers or enjoins the interest

of the stronger or superior, but only the interest of the subject

and weaker?

He made an attempt to contest this proposition also, but finally

acquiesced.

Then, I continued, no physician, in so far as he is a physician,

considers his own good in what he prescribes, but the good of his

patient; for the true physician is also a ruler having the human

body as a subject, and is not a mere money-maker; that has been

admitted?

Yes.