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. aFSzbkPa87aEStLL/1CQuKjiU9Mdp4nAPy2SFfgc1xjV2uRfLMvQ+58T+SsgqhWJ