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. LUy7B6pwl7fNVOtc1TAUPSvhgaf0iw3sbbqnVfYrhlUuwxQeiMgOQrFOV8I0U+qg