Henry George,
Progress and Poverty, Volumes I and II
“ The growth of population, the increase and extension of exchanges, the discoveries of science, the march of invention, the spread of education, the improvement of government, and the amelioration of manners, considered as material forces, have all a direct tendency to increase the productive power of labor—not281 of some labor, but of all labor; not in some departments of industry, but in all departments of industry; for the law of the production of wealth in society is the law of “each for all, and all for each.” ”
