The Church of the Middle Ages was therefore the most splendid edifice that the intellectual classes have so far created. The power of this empire of men of letters increased, as little by little the other empire, that of the generals and diplomats, declined. Christianity saw with indifference the Roman Empire decay; indeed, when it could, it helped on the disintegration and was one of the causes of that political and economic pulverising which everywhere succeeded the great Roman unity. Political and economic unity on the one hand, moral and intellectual on the other, seem in the history of European civilisation things opposite and irreconcilable; when one is formed, the other is undone. As the Roman Empire had found in intellectual and moral disunion a means of preserving more easily the economic and political unity, the Church broke to pieces the political and economic unity of the ancient world to make, and for a long time preserve, its own moral and intellectual oneness. I shall make an effort, above all, to explain the origin, the development, and the consequences of this contradiction, because I believe that explaining this clears one of the weightiest and most important points in all the history of our civilisation; in truth, this contradiction seems to be the immortal soul of it. For instance: in time, Augustus is twenty centuries away from us, but mentally and morally he is, instead, much nearer, because for the last four centuries Europe has been returning to Rome--that is, striving to remake a great political and economic unity at the expense of the intellectual and moral. In this fact particularly, lies the immense historic importance of what is called the classic renaissance. It indicates the beginning of an historic reversion that corresponds in the opposite direction to what occurred in the third and fourth centuries of the Christian era. The classic renaissance freed anew the scientific spirit of the ancients from mediæval metaphysics and therefore created the sciences; rediscovered some basic political and juridical ideas of the ancient world, among them that of the indivisibility of the State, which destroyed the foundations of feudalism and of all the political orders of the Middle Ages; and gave a great impetus to the struggle against the political domination of the Church and toward the formation of the great states. France and England have been in the lead, and for two centuries Europe has been wearying itself imitating them. After the movement of political unification followed the economic. Look about you: what do you see? A world that looks more like the Roman Empire than it does the Middle Ages; it is a world of great states whose dominating classes have almost all the essential ideas of Græco-Latin civilisation; each, seeking to better its own conditions, is forced to establish between itself and the others the strictest economic relations and to bind