It is obvious enough that Palmerston would have said that he cared no more for the Crusade than for the Siege of Troy; that his diplomacy was directed by practical patriotic considerations of the moment; and that he regarded the religious wars of the twelfth century as a rubbish heap of remote superstitions. In this he would be quite wrong, but quite intelligible and quite sincere; an English aristocrat of the nineteenth century inheriting from the English aristocrats of the eighteenth century; whose views were simply those of Voltaire. And these things are something of an allegory. For the Voltairian version of the Crusades is still by far the most reasonable of all merely hostile views of the Crusades. If they were not a creative movement of religion, then they were simply a destructive movement of superstition; and whether we agree with Voltaire in calling it superstition or with Villehardouin in calling it religion, at least both these very clear-headed Frenchmen would agree that the motive did exist and did explain the facts. But just as there is a clumsy German building with statues that at once patronise and parody the Crusaders, so there is a clumsy German theory that at once patronises and minimises the Crusades. According to this theory the essential truth about a Crusade was that it was not a Crusade. It was something that the professors, in the old days before the war, used to call a Teutonic Folk-Wandering. Godfrey and St. Louis were not, as Villehardouin would say, fighting for the truth; they were not even, as Voltaire would say, fighting for what they thought was the truth; this was only what they thought they thought, and they were really thinking of something entirely different. They were not moved either by piety or priestcraft, but by a new and unexpected nomadism. They were not inspired either by faith or fanaticism, but by an unusually aimless taste for foreign travel. This theory that the war of the two great religions could be explained by "Wanderlust" was current about twenty years ago among the historical professors of Germany, and with many of their other views, was often accepted by the historical professors of England. It was swallowed by an earthquake, along with other rubbish, in the year 1914.