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. uSMSJyZ5kIKuZ6v5zoEKdLRk//LNsKWkmTQn7kVMTUrGb5AMuwrmR9HhnyJa79nc