directed. From the very beginning of the war Athens had kept up an interest in Sicily, and her squadron had, from time to time, appeared on its coasts and taken part in the dissensions in which the Sicilian Greeks were universally engaged one against each other. There were plausible grounds for a direct quarrel, and an open attack by the Athenians upon Syracuse.
With the capture of Syracuse all Sicily, it was hoped, would be secured. Carthage and Italy were next to be attacked. With large levies of Iberian mercenaries she then meant to overwhelm her Peloponnesian enemies. The Persian monarchy lay in hopeless imbecility, inviting Greek invasion; nor did the known world contain the power that seemed capable of checking the growing might of Athens, if Syracuse once could be hers.
The national historian of Rome has left us, as an episode of his great work, a disquisition on the probable effects that would have followed if Alexander the Great had invaded Italy. Posterity has generally regarded that disquisition as proving Livy's patriotism more strongly than his impartiality or acuteness. Yet, right or wrong, the speculations of the Roman writer were directed to the consideration of a very remote possibility. To whatever age Alexander's life might
