The greatest extent of the Roman empire being from the north of England to the Gulf of Persia, they consequently abandoned Britain, and those conquests in Asia, which were the most difficult to keep. The river Euphrates became the boundary, the Emperor Adrian having, in a voluntary manner, given up all the country to the north of that river, situated on its left bank.
The decline of the empire might have been as regular as the rise of the republic, had it not been for the different characters of the emperors; some of whom did honour to human nature, from their possessing almost every virtue, while others were such monsters, that their crimes excite the highest degree of horror and indignation, and are almost beyond credibility.
It is but justice to the Romans to observe, that though they robbed and conquered, yet their policy was to instruct, improve, and civilize those whom they had robbed and conquered, wherever they stood in want of it. They aimed, in every case, at making the most of the circumstances in which they were placed, and they very truly conceived, that it was more profitable and advantageous, to rule over a civilized than a rude people. [end of page #39]
After the great influx of wealth had corrupted Rome, its public expenses increased at an enormous rate, till at last that portion of the tribute exacted from the provinces, which it pleased the armies and the generals to remit to Rome, became unequal to the expenditure. Taxation of every kind then became necessary, in Italy itself, and the evils that attend the multiplication of imposts were greatly augmented by the ignorant manner in which they were laid on, by men who understood little but military affairs, added to the severe manner in which were they =sic= levied by a rude, imperious, and debauched soldiery.
The characters of soldier and citizen, which had been so long united, ceased to have any connection. Soon after this, the corruption of manners became general; and, at last, the Romans unable to find soldiers amongst themselves, were obliged to retain barbarians to fight in their defence, {38} and to bribe the Persians, and other nations, to leave them in a state of tranquility.
No nation that ever yet submitted to pay tribute, has long preserved its independence. The Romans knew this well; and if any one, having had recourse to that expedient, has escaped ruin, it has been from some other circumstance than its own exertion; or it has sometimes been the effort of despair when pushed to extremity.
Though, in many respects, Montesquieu's opinion of the affairs of Rome is by no means to be taken, yet his short account of the whole is unexceptionally just.
"Take," says that able and profound writer, "this compendium of the Roman history. The Romans subdued all nations by their maxims; but, when they had succeeded in doing so, they could no longer preserve their republican form of government. It was necessary to change the plan, and maxims contrary to their first, being introduced, they were divested of all their grandeur."
This was literally the case; but then it is clear that this compendium, only includes the secondary causes, and their effects; for the perseverance in maxims till they had obtained their end, and then changing
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