5 16
ESSAYS ON LIBERTY
it is necessary that the Popes themselves should not testify against their own claim. They may be declared superior to all other authorities, but not to that of their own see. Their history is not irrelevant to the question of their rights. I t could not be disregarded; and the provocation to alter or to deny its testimony was so urgent that men of piety and learning became a prey to the temptation of deceit. When it was discovered in the manuscript of the Liber Diurnus that the Popes had for centuries condemned Honorius in their profession of faith, Cardinal Bona, the most eminent man in Rome, advised that the book should be suppressed if the difficulty could not be got over; and it was suppressed accordingly.1 Men guilty of this kind of fraud would justify it by saying that their religion transcends the wisdom of philosophers, and cannot submit to the criticism of historians. If any fact manifestly contradicts a dogma, that is a warning to science to revise the evidence. There must be some defect in the materials or in the method. Pending its discovery, the true believer is constrained humbly but confidently to deny the fact. The protest of conscience against this fraudulent piety grew loud and strong as the art of criticism became more certain. The use made of it by Catholics in the literature of the present age, and their acceptance of the conditions of scientific controversy, seemed to ecclesiastical authorities a sacrifice of principle. A jealousy arose that ripened into antipathy. Almost every writer who really served Catholicism fell sooner or later under the disgrace or the suspicion of Rome. But its censures had lost efficacy; and it was found that the progress of literature could only be brought under control by an increase of authority. This could be obtained if a general council declared the decisions of the Roman congregations absolute, and the Pope infallible. The division between the Roman and the Catholic
1 Cum in professione fidei electi pontificis damnetur Honorius Papa, ideo quia pravis baereticorum assertionibus fomentum impendit, si verba delineata sint vere in autographo, nec ex notis apparere possit, quomodo huic vu1neri medelam offerat, praestat non divulgari opus,
