still our State will not be very large.

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 wellnigh 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