The nations, and the sects, of the Roman world, admitted with equal credulity, and similar abhorrence, the reality of that infernal art [witchcraft], which was able to control the eternal order of the planets, and the voluntary operations of the human mind. . . . They believed, with the wildest inconsistency, that this preternatural dominion of the air, of earth, and of hell, was exercised, from the vilest motives of malice or gain, by some wrinkled hags and itinerant sorcerers, who passed their obscure lives in penury and contempt.

I never make the mistake of arguing with people for whose opinions I have no respect.

The mixture of Sarmatic and German blood had contributed to improve the features of the Alani, to whiten their swarthy complexions, and to tinge their hair with a yellowish cast, which is seldom found in the Tartar race.

Where the subject lies so far beyond our reach, the difference between the highest and the lowest of human understandings may indeed be calculated as infinitely small; yet the degree of weakness may perhaps be measured by the degree of obstinacy and dogmatic confidence.

A taste for books, which is still the pleasure and glory of my life.

But this inestimable privilege was soon violated: with the knowledge of truth the emperor imbibed the maxims of persecution; and the sects which dissented from the catholic church were afflicted and oppressed by the triumph of Christianity. Constantine easily believed that the heretics, who presumed to dispute his opinions or to oppose his commands, were guilty of the most absurd and criminal obstinacy; and that a seasonable application of moderate severities might save those unhappy men from the danger of an everlasting condemnation.

Inclined to peace by his temper and situation, it was easy for [Augustus] to discover that Rome, in her present exalted situation, had much less to hope than to fear from the chance of arms; and that, in the prosecution of remote wars, the undertaking became every day more difficult, the event more doubtful, and the possession more precarious and less beneficial.