125. “But,” it is said, “we should import everything.” Should we import everything and give nothing? If so, foreigners would make us presents and support us. Should we give equal value in exchange? If so, there would be just as much “industry” and a great deal less “work” in that way of getting things than in making them ourselves. The moment that ceased to be true we should make and not buy. Suppose that a district, A, has two million inhabitants, one million of whom produce a million bushels of wheat, and one million produce a million hundredweight of iron; and suppose that a bushel of wheat exchanges for a hundredweight of iron. Now, by improved transportation and emigration, suppose that a new wheat country, B, is opened, and that its people bring wheat to the first district, offering two bushels for a hundredweight of iron. Plainly they must offer more than one bushel for one hundredweight, or it is useless for them to come. Now the people of A, by putting all their labor and capital in iron production, produce two million hundredweight. They keep one million hundredweight, and exchange one million hundredweight of iron for two million bushels of wheat. The destruction of their wheat industry is a sign of a change in industry (unifying and not diversifying) by which they have gained a million bushels of wheat. Such is the gain of all trade. If the gain did not exist, trade would not be a feature of civilization. (_J_) THAT IT WOULD BE WISE TO CALL INTO EXISTENCE VARIOUS INDUSTRIES, EVEN AT AN EXPENSE, IF WE COULD THUS OFFER EMPLOYMENT TO ALL KINDS OF ARTISANS, ETC., WHO MIGHT COME TO US. 126. This would be only maintaining public workshops at the expense of the taxpayers, and would be open to all the objections which are conclusive against public workshops. The expense would be prodigious, and the return little or nothing. This argument shows less sense of comparative cost and gain than any other which is ever proposed. (_K_) THAT WE WANT TO BE COMPLETE IN OURSELVES AND SUFFICIENT TO OURSELVES, AND INDEPENDENT, AS A NATION, WHICH STATE OF THINGS WILL BE PRODUCED BY PROTECTION.