The manufacturers answer probably would be, that it would not be worth his while to put all his energies in manufacturing for less than this amount of profit, as he could, with at least equal safety and without personal excrtion, obtain, say 1000 by lending his capital to any ordirary productive undertaking. If this answer two statements are involved first, that of the 2000 one part is wage for personal exertion, and, second, that the reminder is the usual return to capital thou personal excrtion. Thus is drawn a rough dividing line between what is usually called undertakes profit and interest.....