Man, though acting on external characters alone and often capriciously, can produce within a short period a great result by adding up mere individual differences in his domestic productions;
Gizakiak, kanpoko ezaugarriei soilki, eta sarri apetaz, ekin arren, aldi laburrean emaitza handiak lor ditzake, bere etxe-ekoizkinei ezberdintasun indibidual hutsak erantsiz;