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And the pilot-that is to say, the true pilot-is he a captain of

sailors or a mere sailor?

A captain of sailors.

The circumstance that he sails in the ship is not to be taken

into account; neither is he to be called a sailor; the name pilot

by which he is distinguished has nothing to do with sailing, but

is significant of his skill and of his authority over the

sailors.

Very true, he said.

Now, I said, every art has an interest?

Certainly.

For which the art has to consider and provide?

Yes, that is the aim of art.

And the interest of any art is the perfection of it-this and

nothing else?

What do you mean?

I mean what I may illustrate negatively by the example of the

body. Suppose you were to ask me whether the body is

self-sufficing or has wants, I should reply: Certainly the body

has wants; for the body may be ill and require to be cured, and

has therefore interests to which the art of medicine ministers;

and this is the origin and intention of medicine, as you will

acknowledge. Am I not right?