OF THE CAUSES OF IMPROVEMENT IN THE PRODUCTIVE POWERS OF LABOUR, AND OF THE ORDER ACCORDING TO WHICH ITS PRODUCE IS NATURALLY DISTRIBUTED AMONG THE DIFFERENT RANKS OF THE PEOPLE. h8fFryjt9vQtRN79U50WfqaemIHkYzZGruISML1qpjgMw3f1JC7djeXv9quxuQXK