The language of early ages is, in one respect, simple and confined; in another, it is varied and free: it allows liberties, which, to the poet of after-times, are denied.

In rude ages men are not separated by distinctions of rank or profession. They live in one manner, and speak one dialect. The bard is not to choose his expression among the singular accents of different conditions. He has not to guard his language from the peculiar errors of the mechanic, the peasant, the scholar, or the courtier, in order to find that elegant propriety, and just elevation, which is free from the vulgar of one class, the pedantic of the second, or the flippant of the third. The name of every object, and of every sentiment, is fixed; and if his conception has the dignity of nature, his expression will have a purity which does not depend on his choice.

An Essay on the History of Civil Society, Eighth Edition — Part 147

With this apparent confinement in the choice of his words, he is at liberty to break through the ordinary modes of construction; and in the form of a language not established by rules, may find for himself a cadence agreeable to the tone of his mind. The liberty he takes, while his meaning is striking, and his language is raised, appears an improvement, not a trespass on grammar. He delivers a style to the ages that follow, and becomes a model from which his posterity judge.

An Essay on the History of Civil Society, Eighth Edition — Part 147

But whatever may be the early disposition of mankind to poetry, or the advantages they possess in cultivating this species of literature; whether the early maturity of poetical compositions arise from their being the first studied, or from their having a charm to engage persons of the liveliest genius, who are best qualified to improve the eloquence of their native tongue; it is a remarkable fact, that, not only in countries where every vein of composition was original, and was opened in the order of natural succession; but even at Rome, and in modern Europe, where the learned began early to practise on foreign models, we have poets of every nation, who are perused with pleasure, while the prose writers of the same ages are neglected.

An Essay on the History of Civil Society, Eighth Edition — Part 147

As Sophocles and Euripides preceded the historians and moralists of Greece, not only Naevius and Ennius, who wrote the Roman history in verse, but Lucilius, Plautus, Terence, and we may add Lucretius, were prior to Cicero, Sallust, or Caesar. Dante and Petrarch went before any good prose writer in Italy; Corneille and Racine brought on the fine age of prose compositions in France; and we had in England, not only Chaucer and Spenser, but Shakspeare and Milton, while our attempts in history or science were yet in their infancy; and deserve our attention, only for the sake of the matter they treat.