This scheme of the king or his minister was expanded with great thoroughness and clear-sightedness by the Abbé St. Pierre: none of the many later plans for a perpetual peace has been so perfect in details. He proposes that there should be a permanent and perpetual union between, if possible, all Christian sovereigns—of whom he suggests nineteen, excluding the Czar—“to preserve unbroken peace in Europe,” and that a permanent Congress or senate should be formed by deputies of the federated states. The union should protect weak sovereigns, minors during a regency, and so on, and should banish civil as well as international war—it should “render prompt and adequate assistance to rulers and chief magistrates against seditious persons and rebels.” All warfare henceforth is to be waged between the troops of the federation—each nation contributing an equal number—and the enemies of European security, whether outsiders or rebellious members of the union. Otherwise, where it is possible, all disputes occurring within the union are to be settled by the arbitration of the senate, and the combined military force of the federation is to be applied to drive the Turks out of Europe. There is to be a rational rearrangement of boundaries, but after this no change is to be permitted in the map of Europe. The union should bind itself to tolerate the different forms of faith. The objections to St. Pierre’s scheme are, many of them, obvious. He himself produces sixty-two arguments likely to be raised against his plan, and he examines these in turn with acuteness and eloquence. But there are other criticisms which he was less likely to be able to forestall. Of the nineteen states he names as a basis of the federation, some have disappeared and the governments of others have completely changed. Indeed St. Pierre’s scheme did not look far beyond the present. But it has besides a too strongly political character.[38] From this point of view, the Abbé’s plan amounts practically to a European coalition against the Ottoman Empire. Moreover, we notice with a smile that the French statesman and patriot is not lost in the cosmopolitan political reformer. “The kingdom of Spain shall not go out of the House of Bourbon!”[39] France is to enjoy more than the privileges of honour; she is to reap distinct material and political advantages from the union. Humanity is to be a brotherhood, but, in the federation of nations, France is to stand first.[40] We see that these “rêves d’un homme de bien,” as Cardinal Dubois called them, are not without their practical element. But the great mistake of St. Pierre is this: he actually thought that his plan could be put into execution in the near future, that an ideal of this kind was realisable at once.[41] “I, myself, form’d it,” he says in the preface, “in full expectation to see it one Day executed.” As Hobbes, says, “there can be nothing so absurd, but may be found in the books of philosophers.”[42] St. Pierre was