Such was the oracular reply of the Salernitan sages to Robert, Duke of Normandy, and no one can dispute the sound common sense of the prescription given, nor doubt that it is applicable to half the patients who to-day throng the consulting rooms of fashionable London physicians. But to return to Robert Guiscard, who shares the historical honours of the place, together with the great Pope Gregory VII., of whom we shall speak presently. After subduing the southern half of Italy and the island of Sicily, the great Duke next turned his victorious arms against the Eastern Empire, with the secret intention, it was suspected, of ascending the throne of Constantine. With the pseudo-Emperor Michael in his train, the Great Adventurer in 1081 assembled a vast army at Otranto, consisting of 30,000 Italian subjects and of 1300 Norman knights, with the object of crossing over to Epirus. Durazzo on the opposite Albanian coast, the Dyrrachium of the ancients, a city that was henceforth destined to be closely associated with succeeding dynasties of South Italy, was the objective of this gigantic expedition, for it was commonly reported to be the key of the Eastern Empire. Thither the flotilla set sail, but before reaching the Greek shore, an unexpected and unseasonable tempest scattered Guiscard’s argosy, destroying many of the ships and drowning many crews. Nevertheless, the undaunted spirit and endless resources of the Norman Duke rose superior to all misfortunes. Landing with the remnant of his army he at once laid siege to Durazzo, despite the fact that the Emperor Alexius was marching to its relief, and that the Venetian fleet was already anchored in its harbour. In spite of overwhelming odds, Guiscard utterly routed the Byzantine army. With his heir Bohemond and his wife Sigilgaita beside him, the Duke watched the progress of the battle, and at its most critical juncture, at a moment when it appeared inevitable that the hard-pressed Italian army must yield to the sheer numbers of the foe, the deep voice of the leader could be heard booming like a deep-toned bell over the battlefield, as he addressed his wavering troops. “Whither do ye fly? Your enemy is implacable, and death is less grievous than slavery!” Joined with the hoarse voice of Guiscard, the Norman warriors could distinguish the exhortations of the Amazon-like Sigilgaita, “a second Pallas, less skilful in arts, but no less terrible in arms than the Athenian goddess.” Rallying at the words of their master and shamed by the martial ardour of the Duchess, the invading troops made one last desperate effort, whereby the Imperial army was driven back and scattered, so that Alexius barely escaped with his life. Having routed the Emperor in fair fight, Guiscard now made use of his unparalleled cunning by bribing the treacherous Venetians, who eventually assisted the Italian forces to enter the city gates, and thus Durazzo was gained at the point of the sword