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CHAP. III. Of the Constitution of the Roman Empire, in the Age of the Antonines.
THE obvious definition of a monarchy seems to be that of a state, in which a single per|son, by whatsoever name he may be distinguish|ed, * 1.1 is intrusted with the execution of the laws, the management of the revenue, and the command of the army. But, unless public liberty is protected by intrepid and vigilant guardians, the authority of so formidable a magistrate will soon degenerate into despotism. The influence of the clergy, in an age of superstition, might be usefully employ|ed to assert the rights of mankind; but so inti|mate is the connexion between the throne and the altar, that the banner of the church has very seldom been seen on the side of the people. A martial nobility and stubborn commons, possessed of arms, tenacious of property, and collected into constitutional assemblies, form the only balance capable of preserving a free constitution against enterprises of an aspiring prince.
Every barrier of the Roman constitution had * 1.2 been levelled by the vast ambition of the dic|tator; every fence had been extirpated by the cruel hand of the Triumvir. After the victory of Actium, the fate of the Roman world de|pended on the will of Octavianus, surnamed Cae|sar, by his uncle's adoption, and afterwards Au|gustus,