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. pzLeJ+5AfzyhWZz+bbJW2znITnTHdPkmRFIyD7i8qzKDhrbFZ8pbPDfn1PRgM9yC