"A machine in the hand of a single individual can often do a hundredfold more work than an individual can do by the direct application of his own hands. He who makes the machine, then, is more productively employed than he who, without it, engages immediately in the work. To produce a steam-engine that sets a hundred looms agoing, is a far larger contribution to the goods of the country than to work at a single loom. This principle, obvious enough in manufactures, is sadly overlooked in the business of human society. The man who spends so much time in the services of a philanthropic institution is not so productively employed as he who excites the principle which prompts those services in the breasts of a hundred men. He who does the work is not so productively employed as he who multiplies the doers."—Life of Dr. Chalmers.