Centrally planned economies are upended by out of control population. Their escape valve is eugenics. - A.E. Samaan
The petty economies of the rich are just as amazing as the silly extravagances of the poor. - William Feather
There cannot exist in the future an economy which is still mercantile but which isn't capitalist anymore. Before capitalism there were economies which were partially mercantile, but capitalism is the last of this genre. - Amadeo Bordiga
Civilization is in fact the longest story of all. Civilization can persist through a series of economies. - Fernand Braudel