 The “Advertisement” to his first publication, A Treatise of Human Nature, promises that if the first two volumes find suitable “approbation,” the project will conclude with “the examination of morals, politics, and criticism; which will compleat this Treatise of human nature” (T, Adv, xii). Sadly, the Treatise was not a success and Hume limited the third and final volume to the topic “Of Morals.” He never produced his systematic treatment of politics and criticism and so never completed his new “science” of human nature. Those topics would be handled piecemeal in several collections of short essays, the “polite” writing that brought him the publishing success he desired.