David Hume believed that most of the views about society and politics prevalent in his day had roots in one or another of “two species of false religion,” superstition and enthusiasm. Both were developments of conflicting theological doctrines that appealed to two different types of personalities. Both had come to be associated with opposing political interests. Both sprang from ignorance. And, while the two species had been universally present in society and in individuals in varying degrees throughout history, the peculiarity of modern post-Reformation Europe was the violent oscillation between them, as evidenced by them any wars of religion. Their more extreme adherents were also, not least, responsible for the plight of modern Britain, both north and south. One of the tasks of the philosophical historian, Hume believed, was to explain the preponderance at particular times of one or the other of these persuasions. The task he set for his political theory was to explain why both were philosophically misconceived, empirically untenable, and, in their extreme forms, politically dangerous.

THE POLITICS OF RELIGION

One part of humanity, Hume notes, has a tendency to “weakness, fear, [and] melancholy, together with ignorance.” In this state the imagination conjures up forces operating under the surface, and the mind is prone to grasp methods of influencing these forces by “ceremonies, observances, mortifications, sacrifices, presents, or [by] any practice, however absurd or frivolous which either folly or knavery recommends to a blind and terrified credulity.”