“ The main doctrine inculcated in this last treatise is that society will never be in a proper state till men have been educated to think of their duties and not of their rights. It was followed in 1825 by Application de la morale à la philosophie et à la politique, and in 1829 by Économie politique, ou principes de la science des richesses, a methodical and clearly written treatise, which was edited by Michel Chevalier in 1854. ”