But, even when at its best, their system of government had in it--like all human invention--original sin; an unnatural and unrighteous element, which was certain, sooner or later, to produce decay and ruin. The old Nobility of Europe was not a mere aristocracy. It was a caste: a race not intermarrying with the races below it. It was not a mere aristocracy. For that, for the supremacy of the best men, all societies strive, or profess to strive. And such a true aristocracy may exist independent of caste, or the hereditary principle at all. We may conceive an Utopia, governed by an aristocracy which should be really democratic; which should use, under developed forms, that method which made the mediaeval priesthood the one great democratic institution of old Christendom; bringing to the surface and utilising the talents and virtues of all classes, even to the lowest. We may conceive an aristocracy choosing out, and gladly receiving into its own ranks as equals, every youth, every maiden, who was distinguished by intellect, virtue, valour, beauty, without respect to rank or birth; and rejecting in turn, from its own ranks, each of its own children who fell below some lofty standard, and showed by weakliness, dulness, or baseness, incapacity for the post of guiding and elevating their fellow-citizens. Thus would arise a true aristocracy; a governing body of the really most worthy--the most highly organised in body and in mind--perpetually recruited from below: from which, or from any other ideal, we are yet a few thousand years distant. But the old Ancien Regime would have shuddered, did shudder, at such a notion. The supreme class was to keep itself pure, and avoid all taint of darker blood, shutting its eyes to the fact that some of its most famous heroes had been born of such left-handed marriages as that of Robert of Normandy with the tanner's daughter of Falaise. "Some are so curious in this behalf," says quaint old Burton, writing about 1650, "as these old Romans, our modern Venetians, Dutch, and French, that if two parties dearly love, the one noble, the other ignoble, they may not, by their laws, match, though equal otherwise in years, fortunes, education, and all good affection. In Germany, except they can prove their gentility by three descents, they scorn to match with them. A nobleman must marry a noblewoman; a baron, a baron's daughter; a knight, a knight's. As slaters sort their slates, do they degrees and families."