We have said, in reference to our wants and desires, that there are no two men exactly alike. The same thing may be said of our ‹satisfactions›: they are not held in equal estimation by all, which verifies the common saying, that ‹tastes differ›. Now it is by the intensity of our desires, and the variety of our tastes, that the direction of our efforts is determined. It is here that the influence of morals upon industry becomes apparent. Man, as an individual, may be the slave of tastes which are factitious, puerile, and [p096] immoral. In this case it is self-evident that, his powers being limited, he can only satisfy his depraved desires at the expense of those which are laudable and legitimate. But when society comes into play, this evident axiom is marked down as an error. We are led to believe that artificial tastes, illusory satisfactions, which we acknowledge as the source of individual poverty, are nevertheless the cause of national wealth, as opening a vent to manufactures. If it were so, we should arrive at the miserable conclusion, that the social state places man between poverty and vice. Once more, Political Economy reconciles, in the most rigorous and satisfactory manner, these apparent contradictions. [p097] IV. EXCHANGE. Exchange is Political Economy—it is Society itself—for it is impossible to conceive Society as existing without Exchange, or Exchange without Society. I shall not pretend in this chapter to exhaust so vast a subject. To present even an outline of it would require the entire volume. If men, like snails, lived in complete isolation, if they did not exchange their ideas and exertions, and had no bargain or transactions with each other, we might have multitudes, indeed—human units—individuals living in juxtaposition—but we could not have ‹Society›. Nay, we should not even have individuals. To man isolation is death. But then, if he cannot live out of society, the legitimate conclusion is that the social state is his natural state. All the sciences tend to establish this truth, which was so little understood by the men of the eighteenth century that they founded morals and politics on the contrary assertion. They were not content with placing the state of nature in opposition to the social state—they gave the first a decided preference. “Men were blessed,” said Montaigne, “when they lived without bonds, without laws, without language, without religion.” And we know that the system of Rousseau, which exercised, and still exercises, so powerful an influence over opinions and facts, rests altogether on this hypothesis—that men, unhappily, ‹agreed› one fine morning to abandon the innocent ‹state of nature› for the stormy ‹state of society›.