But (I had almost said unhappily) the invaders were not content with having swords, they had also consciences. They were Christians, and thought it necessary to justify themselves before the High Court of Christian Europe. Consequently the clerks had to write up the record in quite a different fashion. They discovered that their bluff, hard-bitten, rather likeable employers, scarcely one of whom could read or write, had really invaded Anywhere as the trustees of civilisation. Now it may be said in general--and the observation extends to our own time--that the moment an invader discovers that he is the trustee of civilisation he is irretrievably lost to the truth. He is forced by his own pose to become not an unprincipled liar, but that much more disgusting object, a liar on principle. He is bound, in order to legitimise his own position, to prove that "the natives" are savages, living in a morass of nastiness and ignorance. All facts must be adapted to this conclusion. The clerks, having made this startling discovery, went on to supplement it by the further discovery that their masters had invaded Anywhere in order to please the Pope, and introduce true religion. This second role completes the dedication of the invaders on the altar of mendacity. It was Leo XIII. himself who, with that charming humour of his, deprecated the attitude of certain _a priori_ historians who, said he, if they were writing the Gospel story would, in their anxiety to please the Pope, probably suppress the denial of Peter.