Innis
When exchange is voluntary, different skills and different needs find each other and both parties leave better than they came. The man who grows wheat and the man who mends shoes have nothing in common except that each has what the other wants, and that is enough, and no committee decided it should be so. Paul told the Romans they were many members in one body and all members had not the same office, and he was describing the market as much as the church, the same logic operating in both, the parts serving each other precisely because they are not the same.