 In short, both division and unanimity are present within eighteenth century Scottish philosophy, unanimity with respect to aim—a science of mind—and division with respect to method—the “principles of common sense” versus “the way of ideas”. This is a tension, however, within only one part of 18th century Scottish philosophy, namely the philosophy of sensation and perception, and not perhaps the most influential part. The Scottish Enlightenment is in many ways more marked by the type of thinking about social and political topics that we find in Adam Smith and Adam Ferguson, as well as Hume, who in this respect take their cue from Hutcheson. The example par excellence is Smith's Theory of Moral Sentiments (1759; 6th edition 1790), where the Humean ambition of countering the “books of divinity and abstruse metaphysics” (Treatise) was furthered by a sympathetic attention to how human beings in society actually are, and what social forms and political arrangements will best work to their happiness and well being.