" So far, therefore, as the science of exchange relates to the advantage of one of the exchanging persons only, it is founded on the ignorance or incapacity of the opposite person. . . . It is therefore a science founded on nescience. . . . This science, alone of sciences, must, by all available means, promulgate and prolong its opposite nescience. . . . It is therefore peculiarly and alone science of darkness. "

― John Ruskin , Unto This Last