Challenging the recent tendency to fragment the Enlightenment in eighteenth-century Europe into multiple Enlightenments, John Robertson demonstrates the extent to which thinkers in two societies at the opposite ends of Europe shared common intellectual preoccupations. Before 1700, Scotland and Naples faced a bleak future as backward, provincial kingdoms in a Europe of aggressive commercial states. Yet by 1760, Scottish and Neapolitan thinkers were in the van of those advocating the cause of Enlightenment by means of political economy. Robertson pays particular attention to the greatest thinkers in each country, David Hume and Giambattista Vico.