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.

It is the common calamity of old age to lose whatever might have rendered it desirable.

In the productions of the mind, as in those of the soil, the gifts of nature are excelled by industry and skill . . .

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.

Rational confidence [is] the just result of knowledge and experience.

A small number of temples was protected by the fears, the venality, the taste, or the prudence of the civil and ecclesiastical governors. The temple of the Celestial Venus at Carthage, whose sacred precincts formed a circumference of two miles, was judiciously converted into a Christian church; and a similar consecration has preserved inviolate the majestic dome of the Pantheon at Rome.

[The] operation of the wisest laws is imperfect and precarious. They seldom inspire virtue, they cannot always restrain vice.