The Humanity of Trade

Wherever two boys swap tops for marbles, that is the marketplace. The simple barter, in terms of human happiness, is no different from a trade transaction involving banking operations, insurance, ships, railroads, wholesale and retail establishments; for in any case the effect and purpose of trade is to make up a lack of satisfactions. The boy with a pocketful of marbles is handicapped in the enjoyment of life by his lack of tops, while the other is similarly discomfited by his need for marbles;...