His advocacy of Italian Unity rests on a surer bottom. That the country was fated to stagnate till the foreigner had gone, was common ground with every school of patriots. But when the Austrians had been driven out, was Italy to be a federation of states or one united country? Mazzini pleaded that the point at issue between him and the federalists was mainly one of practicability. This hardly took sufficient account of the school, which looked to Switzerland and America for its types, and preferred a federation on its own merits. But on the whole his contention was right. Every argument that told for federation, told yet more forcibly for unity. The strength of the federalist movement lay in the belief that unity was impossible. As yet, though Napoleon had foretold that unity must come, only a handful of Italians had dared to speak of it as a possible ideal. The great majority doubted whether Italy even wished to be united, whether, if she did, the facts of the European polity made it possible, whether unity could permanently stand the strain of the old provincial animosities. It was easy for them to adduce a host of facts,--the differences of race and temperament and tradition, the various habits formed by dissimilar systems of law and land tenure and education, the jealousies, still far from dead, that sundered province from province and city from city. Mazzini himself had felt the force of their arguments, and there was a moment, when even he had been shaken in his faith. He had little tangible reasoning to back his confidence. But he had the prophetic assurance of a great possibility, and his contagious faith made it a reality. He saw, when hardly another of his contemporaries saw it, that Italian Unity was a practicable ideal; his teaching informed the national resolve, that changed the seemingly impossible into a fact. To few men has it been given to create a great political idea; to fewer still to be not only the creator, but the chief instrument in realising it. Mazzini was both, and it gives him title to rank among the makers of modern Europe.