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 philosopher may deplore the eternal discords of the human race, but he will confess, that the desire of spoil is a more rational provocation than the vanity of conquest.

The active, insatiate principle of self-love can alone supply the arts of life and the wages of industry; and as soon as civil government and exclusive property have been introduced, they become necessary to the existence of the human race.

The dark cloud, which had been cleared by the Phoenician discoveries, and finally dispelled by the arms of Caesar, again settled on the shores of the Atlantic, and a Roman province [Britain] was again lost among the fabulous Islands of the Ocean.

Philosophy had instructed Julian to compare the advantages of action and retirement; but the elevation of his birth and the accidents of his life never allowed him the freedom of choice. He might perhaps sincerely have preferred the groves of the Academy and the society of Athens; but he was constrained, at first by the will, and afterwards by the injustice of Constantius, to expose his person and fame to the dangers of Imperial greatness; and to make himself accountable to the world and to posterity for the happiness of millions.

The spectator and historian of [Belisarius's] exploits has observed, that amidst the perils of war, he was daring without rashness, prudent without fear, slow or rapid according to the exigencies of the moment; that in the deepest distress he was animated by real or apparent hope, but that he was modest and humble in the most prosperous fortune.

The revolution of ages may bring round the same calamities; but ages may revolve without producing a Tacitus to describe them.