The monastic studies have tended, for the most part, to darken, rather than to dispel, the cloud of superstition.

But [the Arabs'] friendship was venal, their faith inconstant, their enmity capricious: it was an easier task to excite than to disarm these roving barbarians; and, in the familiar intercourse of war, they learned to see, and to despise, the splendid weakness both of Rome and of Persia.

A state of skepticism and suspense may amuse a few inquisitive minds. But the practice of superstition is so congenial to the multitude that, if they are forcibly awakened, they still regret the loss of their pleasing vision.

But a wild democracy . . . too often disdains the essential principles of justice.

The knowledge that is suited to our situation and powers, the whole compass of moral, natural, and mathematical science, was neglected by the new Platonists; whilst they exhausted their strength in the verbal disputes of metaphysics, attempted to explore the secrets of the invisible world, and studied to reconcile Aristotle with Plato, on subjects of which both these philosophers were as ignorant as the rest of mankind.

In the second century of the Christian era, the Empire of Rome comprehended the fairest part of the earth, and the most civilised portion of mankind. The frontiers of that extensive monarchy were guarded by ancient renown and disciplined valour. The gentle but powerful influence of laws and manners had gradually cemented the union of the provinces. Their peaceful inhabitants enjoyed and abused the advantages of wealth and luxury.

History should be to the political economist a wellspring of experience and wisdom.