The education of the common people requires, perhaps, in a civilized and commercial society, the attention of the public more than that of people of some rank and fortune.
Adam SmithBut poverty, though it does not prevent the generation, is extremely unfavourable to the rearing of children. The tender plant is produced, but in so cold a soil, and so severe a climate, soon withers and dies.
Adam SmithLabour was the first price, the original purchase - money that was paid for all things. It was not by gold or by silver, but by labour, that all wealth of the world was originally purchased.
Adam Smith