That is true; yet neither will it be a very small State which
contains all these.
Then, again, there is the situation of the city--to find a place
where nothing need be imported is well-nigh impossible.
Impossible.
Then there must be another class of citizens who will bring
the required supply from another city?
There must.
But if the trader goes empty-handed, having nothing which they
require who would supply his need, he will come back empty-handed.
That is certain.
And therefore what they produce at home must be not only
enough for themselves, but such both in quantity and quality
as to accommodate those from whom their wants are supplied.
Very true.
Then more husbandmen and more artisans will be required?
They will.
Not to mention the importers and exporters, who are called merchants?
Yes.
Then we shall want merchants?
We shall.
And if merchandise is to be carried over the sea, skilful sailors
will also be needed, and in considerable numbers?
Yes, in considerable numbers.
Then, again, within the city, how will they exchange their productions?
To secure such an exchange was, as you will remember, one of our
principal objects when we formed them into a society and constituted
a State.
Clearly they will buy and sell.
Then they will need a market-place, and a money-token for purposes
of exchange.
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