Adam Smith did not foresee powerful labor unions or social welfare or heavy technology. He marveled at the productivity attained by division of labor in the making of pins. He knew nothing about single electric-current circuit breakers big as a house. Although accumulation of capital from profit and its reinvestment in productive equipment were cornerstones of his philosophy, the scale of investment required for the subsequent technological advances was beyond his ken. Amusingly, he saw no future for the corporation, because, in his opinion, such an artificial body could not marshal the selfish, driving search for profit so fundamental to his system.