The writers to whom I have referred assert that it was owing to their good fortune and not to their prudence that the Romans never had two great wars on their hands at once; as, for instance, that they waged no wars with the Latins until they had not merely overcome the Samnites, but undertook in their defence the war on which they then entered; nor ever fought with the Etruscans until they had subjugated the Latins, and had almost worn out the Samnites by frequent defeats; whereas, had any two of these powers, while yet fresh and unexhausted, united together, it may easily be believed that the ruin of the Roman Republic must have followed.  But to whatsoever cause we ascribe it, it never so chanced that the Romans engaged in two great wars at the same time.  On the contrary, it always seemed as though on the breaking out of one war, another was extinguished; or that on the termination of one, another broke out.  And this we may plainly see from the order in which their wars succeeded one another.

For, omitting those waged by them before their city was taken by the Gauls, we find that during their struggle with the Equians and the Volscians, and while these two nations continued strong, no others rose against them.  On these being subdued, there broke out the war with the Samnites; and although before the close of that contest the Latin nations had begun to rebel against Rome, nevertheless, when their rebellion came to a head, the Samnites were in league with Rome, and helped her with their army to quell the presumption of the rebels; on whose defeat the war with Samnium was renewed.

When the strength of Samnium had been drained by repeated reverses, there followed the war with the Etruscans; which ended, the Samnites were once more stirred to activity by the coming of Pyrrhus into Italy.  When he, too, had been defeated, and sent back to Greece, Rome entered on her first war with the Carthaginians; which was no sooner over than all the Gallic nations on both sides of the Alps combined against the Romans, by whom, in the battle fought between Populonia and Pisa, where now stands the fortress of San Vincenzo, they were at last routed with tremendous slaughter.

This war ended, for twenty years together the Romans were engaged in no contest of importance, their only adversaries being the Ligurians, and the remnant of the Gallic tribes who occupied Lombardy; and on this footing things continued down to the second Carthaginian war, which for sixteen years kept the whole of Italy in a blaze.  This too being brought to a most glorious termination, there followed the Macedonian war, at the close of which succeeded the war with Antiochus and Asia.  These subdued, there remained not in the whole world, king or people who either singly or together could withstand the power of Rome.