But that Rome has won the crown of so great a victory is proved on the testimony of many. Our poet in his first _Æneid_ says:[263] "Hence, surely, shall one day the Romans come, as the years roll on, to be the leaders of the world, from the blood of Teucer renewed; over the sea and over the land they shall hold full sway."[264] And Lucan, in his first book, writes: "The sword assigns the kingdom; and the fortune of that mighty people that rules o'er sea and land and the whole earth, admitted not two to rule." And Boethius, in his second book,[265] speaking of the Roman prince says: "With his sceptre he ruled the nations, those whom Phoebus beholds, from his rising afar to where he sinks his beams beneath the waves; those who are benumbed by the frosty Seven Stars of the north, those whom the fierce south wind scorches with his heat, parching the burning sands." And Luke, the Scribe of Christ, bears the same testimony, whose every word is true, where he says: "There went out a decree from Cæsar Augustus that all the world should be taxed;" from which words we must plainly understand that the Romans had jurisdiction over the whole world. [Footnote 263: I. 234.--(W.)] [Footnote 264: I. 109.--(W.)] [Footnote 265: _De Consol. Phil._ ii. 6.--(W.)] From all this evidence it is manifest that the Roman people prevailed when all were striving to gain the Empire of the world. Therefore it was by the judgment of God that it prevailed; consequently its Empire was gained by the judgment of God, which is to say, that it was gained by right. X.--And what is gained as the result of single combat or duel is gained of right. For whenever human judgment fails, either because it is involved in the clouds of ignorance, or because it has not the assistance of a judge, then, lest justice should be left deserted, we must have recourse to Him who loved justice so much that He died to fulfil what it required by shedding His own blood. Therefore the Psalmist wrote: "The righteous Lord loveth righteousness." This result is gained when, by the free consent of the parties, not from hatred but from love of justice, men inquire of the judgment of God by a trial of strength as well of soul as of body. And this trial of strength is called a duel, because in the first instance it was between two combatants, man to man. But when two nations quarrel they are bound to try in every possible way to arrange the quarrel by means of discussion; it is only when this is hopeless that they may declare war. Cicero and Vegetius agree on this point, the former in his _De Officiis_,[266] the latter in his book on war. In the practice of medicine recourse may only be had to amputation and cauterising when every other means of cure have been tried. So in the same way, it is only when we have sought in vain for all other modes of deciding a quarrel that we may resort to the remedy of a single combat, forced thereto by a necessity of justice.