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. 2+73jnsszKwwfgQZg7VUVVlEheLWvvnT34BcphPsjH+vOENV8UhGuPhAQlAv26c2