There is nothing in Sir John Acton's essay on "Nationality" which would be likely to excite suspicion at the Court of Rome. But the Home and Foreign Review was known to be a Liberal as well as a Catholic organ. It was marked by independence of tone, as well as by originality of thought, and it soon fell under suspicion. Even its motto, Seu vetus est verum diligo sive novum, "I love the truth, whether it be old or new," was ambiguous. For how can Catholic truth be new? In the month of August 1862, Cardinal Wiseman, the acknowledged head of the Roman Catholic Church in England, received an address from his clergy. His reply contained a severe censure of the Home and Foreign Review for the "absence of all reserve or reverence in its treatment of persons or of things deemed sacred, its grazing even the very edges of the most perilous abysses of error, and its habitual preference of uncatholic to Catholic instincts, tendencies, and motives." The particular charge of personal misrepresentation against which the Cardinal protested has long since lost whatever interest it may once have had. The general tone of Acton's remonstrance, made in his editorial character and in the periodical condemned, illustrates his attitude towards the Church to which he belonged. Of Wiseman he writes not merely with the reverence due to his ecclesiastical rank, but with the affection of an old pupil at Oscott. "In the Cardinal's support and approbation of our work," he says, "we should recognise an aid more valuable to the cause we are engaged in than the utmost support which could be afforded to us by any other person." He then proceeds to describe the foundation of the Review. "That foundation is a humble faith in the infallible teaching of the Catholic Church, a devotion to her cause which controls every other interest, and an attachment to her authority which no other influence can supplant. If in anything published by us a passage can be found which is contrary to that doctrine, incompatible with that devotion, or disrespectful to that authority, we sincerely retract and lament it. No such passage was ever consciously admitted into the pages either of the late Rambler or of the Review." The aim of literature and the function of the journalist are declared to be on a lower level than the work and duty of the Church, though directed to the same ends as hers. "The political and intellectual orders remain permanently distinct from the spiritual. They follow their own ends, they obey their own laws, and in doing so they support the cause of religion by the discovery of truth and the upholding of right." These manly and sensible words are followed by a still more eloquent and significant passage, which expresses the deepest convictions of Acton's mind. "A political law or a scientific truth may be perilous to the morals or the faith of individuals; but it cannot on this ground be resisted by the Church… A discovery may be made in science which will shake the faith of thousands; yet religion cannot regret it or object to it. The difference in this respect between a true and a false religion is, that one judges all things by the standard of their truth, the other by the touchstone of its own interests. A false religion fears the progress of all truth; a true religion seeks and recognises truth wherever it can be found."
When Acton wrote thus, the Darwinian controversy was at its height, and many Protestants, who thought that they believed in the right of private judgment, showed much less tolerance than he. Against the timid faith which feared the light, against the false morality which would do evil that good might come, Acton waged incessant war. Truth, morality, and justice could not in his eyes be inconsistent with the doctrines of the Church. If they appeared to be so, it must be because the doctrines were erroneously expressed or imperfectly understood. To identify the Church with a cause, with a party, with anything lower than morality and religion, was a betrayal of duty and a surrender of the fortress. The policy of the Home and Foreign Review, as expounded by the editor, was to leave the domains of faith and ecclesiastical government alone, but on all other matters to seek the highest attainable certainty. The progress of political right and scientific knowledge, the development of freedom in the state and of truth in literature, were its objects. Here for the time the quarrel rested. It is not to be supposed that Pius the Ninth and his advisers were satisfied with this lucid and pungent exposition of Liberal principles. But Wiseman had learned from experience that the interests of Catholicism in England were not promoted by a policy of aggression, and he was aware that Sir John Acton spoke for most of those Catholics who did not belong to the extreme or Ultramontane school. For nearly two years Sir John remained editor of the Home and Foreign Review. Then the final thunderbolt was launched by a higher power than Wiseman. At the Congress of Munich in 1863 Acton's friend and teacher, Professor Döllinger, delivered an eloquent plea for the union of Christendom, lamenting the want of dogmatic standards among Protestants, and at the same time urging Catholics "to replace the mediæval analytical method by the principle of historical development, and to encounter scientific error with scientific weapons" (Edinburgh Review, No. 404, page 513). Sir John Acton attended this congress, and reported its proceedings to his Review. In March 1864 the Pope addressed a brief to the Archbishop of Munich, in which he declared that the opinions of Catholic writers were subject to the authority of the Roman congregations. After this Acton felt that it was useless to continue the struggle, or to carry on the Home and Foreign Review. In a farewell article, entitled "Conflicts with Rome," he explained that he was equally unable to admit the doctrines of the brief or to dispute the authority which proclaimed them. In these circumstances he had only one course to take. He could not abandon principles he sincerely held. He could not reject the judgment of the Holy See without committing the sin of apostasy. "The principles had not ceased to be true, nor the authority to be legitimate, because the two were in contradiction." He could only sacrifice the Home and Foreign Review. He regretted its discontinuance, because, while there were plenty of magazines to represent science apart from religion, and religion apart from science, it had been his special object to exhibit the two in union. But he had no alternative, if he were to preserve his intellectual honesty and also his loyalty to the Church.
It would have been difficult to emerge with more credit from a peculiarly painful and delicate position. The article, and with it the last number of the Review, appeared in April 1864, when Sir John Acton was thirty years of age. The surpassing prudence which accompanied him from boyhood through life had no connection with weakness nor timidity. It resulted from a very rare faculty of apprehending all aspects of a question at once, and of keeping them separate in his mind. In this same year 1864 Acton told one of his parliamentary friends, now Sir Mountstuart Grant Duff, that he had never felt the slightest doubt about any dogma of the Catholic, meaning the Roman Catholic, Church. A time was to come when his faith would be more severely tried. But, independent as he had always been, Acton was not formed by nature to be a leader of revolts. Moral or intellectual anarchy was the last thing he