"... if the only argument for this economic system were the demonstration of its justice, it might well despair of gaining ground. Men's consciences are not easily enlisted against their interests, and few would be induced to share profits, which they have considered their peculiar possession, with workmen who could claim them only as a moral right. But profit-sharing forwards the interests of the employer no less than those of the employed. It offers a keen incentive to the ambition, fidelity, and industry of the laborer, and thus actually creates an entirely new source of profit."