The mischiefs which flow from injudicious counsels are seldom removed by the application of partial severities; and though succeeding princes labored to restore the strength and numbers of the frontier garrisons, the empire, till the last moment of its dissolution, continued to languish under the mortal wound which had been so rashly or so weakly inflicted by the hand of Constantine.
The same timid policy, of dividing whatever is united, of reducing whatever is eminent, of dreading every active power, and of expecting that the most feeble will prove the most obedient, seems to pervade the institutions of several princes, and particularly those of Constantine.
The martial pride of the legions, whose victorious camps had so often been the scene of rebellion, was nourished by the memory of their past exploits, and the consciousness of their actual strength.

As long as they maintained their ancient establishment of six thousand men, they subsisted, under the reign of Diocletian, each of them singly, a visible and important object in the military history of the Roman empire.

A few years afterwards, these gigantic bodies were shrunk to a very diminutive size; and when seven legions, with some auxiliaries, defended the city of Amida against the Persians, the total garrison, with the inhabitants of both sexes, and the peasants of the deserted country, did not exceed the number of twenty thousand persons.

From this fact, and from similar examples, there is reason to believe, that the constitution of the legionary troops, to which they partly owed their valor and discipline, was dissolved by Constantine; and that the bands of Roman infantry, which still assumed the same names and the same honors, consisted only of one thousand or fifteen hundred men.

The conspiracy of so many separate detachments, each of which was awed by the sense of its own weakness, could easily be checked; and the successors of Constantine might indulge their love of ostentation, by issuing their orders to one hundred and thirty-two legions, inscribed on the muster-roll of their numerous armies.