In politics, as in religion, he made the past a law for the present, and resisted doctrines which are ready-made, and are not derived from experience. Consequently, he undervalued work which would never have been done from disinterested motives; and there were three of his most eminent contemporaries whom he decidedly underestimated. Having known Thiers, and heard him speak, he felt profoundly the talent of the extraordinary man, before Lanfrey or Taine, Häusser and Bernhardt had so ruined his credit among Germans that Döllinger, disgusted by his advocacy, whether of the Revolution, of Napoleon, or of France, neglected his work. Stahl claims to be accounted an historian by his incomparably able book on the Church government of the Reformation. As a professor at Munich, and afterwards as a parliamentary leader at Berlin, he was always an avowed partisan. Döllinger depreciated him accordingly, and he had the mortification that certain remarks on the sovereign dialectician of European conservatism were on the point of appearing when he died. He so far made it good in his preface that the thing was forgotten when Gerlach came to see the assailant of his friend. But once, when I spoke of Stahl as the greatest man born of a Jewish mother since Titus, he thought me unjust to Disraeli.

Most of all, he misjudged Macaulay, whose German admirers are not always in the higher ranks of literature, and of whom Ranke even said that he could hardly be called an historian at all, tried by the stricter test. He had no doubt seen how his unsuggestive fixity and assurance could cramp and close a mind; and he felt more beholden to the rivals who produced d'Adda, Barillon, and Bonnet, than to the author of so many pictures and so much bootless decoration. He tendered a course of Bacon's Essays, or of Butler's and Newman's Sermons, as a preservative against intemperate dogmatism. He denounced Macaulay's indifference to the merits of the inferior cause, and desired more generous treatment of the Jacobites and the French king. He deemed it hard that a science happily delivered from the toils of religious passion should be involved in political, and made to pass from the sacristy to the lobby, by the most brilliant example in literature. To the objection that one who celebrates the victory of parliaments over monarchs, of democracy over aristocracy, of liberty over authority, declares, not the tenets of a party, but manifest destiny and the irrevocable decree, he would reply that a narrow induction is the bane of philosophy, that the ways of Providence are not inscribed on the surface of things, that religion, socialism, militarism, and revolution possibly reserve a store of cogent surprises for the economist, utilitarian, and whig.

In 1865 he was invited to prepare a new edition of his Church history. Whilst he was mustering the close ranks of folios which had satisfied a century of historians, the world had moved, and there was an increase of raw material to be measured by thousands of volumes. The archives which had been sealed with seven seals had become as necessary to the serious student as his library. Every part of his studies had suffered transformation, except the fathers, who had largely escaped the crucible, and the canon law, which had only just been caught by the historical current. He had begun when Niebuhr was lecturing at Bonn and Hegel at Berlin; before Tischendorf unfolded his first manuscript; before Baur discovered the Tübingen hypothesis in the congregation of Corinth; before Rothe had planned his treatise on the primitive church, or Ranke had begun to pluck the plums for his modern popes. Guizot had not founded the École des Chartes, and the school of method was not yet opened at Berlin. The application of instruments of precision was just beginning, and what Prynne calls the heroic study of records had scarcely molested the ancient reign of lives and chronicles. None had worked harder at his science and at himself than Döllinger; and the change around him was not greater than the change within. In his early career as a teacher of religion he had often shrunk from books which bore no stamp of orthodoxy. It was long before he read Sarpi or the Lettres Provinciales, or even Ranke's Popes, which appeared when he was thirty-five, and which astonished him by the serene ease with which a man who knew so much touched on such delicate ground. The book which he had written in that state of mind, and with that conception of science and religion, had only a prehistoric interest for its author. He refused to reprint it, and declared that there was hardly a sentence fit to stand unchanged. He lamented that he had lost ten years of life in getting his bearings, and in learning, unaided, the most difficult craft in the world. Those years of apprenticeship without a master were the time spent on his Kirchengeschichte. The want of training remained. He could impart knowledge better than the art of learning. Thousands of his pupils have acquired connected views of religion passing through the ages, and gathered, if they were intelligent, some notion of the meaning of history; but nobody ever learnt from him the mechanism by which it is written.

Brougham advised the law-student to begin with Dante; and a distinguished physician informs us that Gibbon, Grote, and Mill made him what he is. The men to whom Döllinger owed his historic insight and who mainly helped to develop and strengthen and direct his special faculty, were not all of his own cast, or remarkable in the common description of literary talent. The assistants were countless, but the masters were few, and he looked up with extraordinary gratitude to men like Sigonius, Antonius Augustinus, Blondel, Petavius, Leibniz, Burke, and Niebuhr, who had opened the passes for him as he struggled and groped in the illimitable forest.

He interrupted his work because he found the materials too scanty for the later Middle Ages, and too copious for the Reformation. The defective account of the Albigensian theology, which he had sent to one of his translators, never appeared in German. At Paris he searched the library for the missing information, and he asked Rességuier to make inquiry for the records of the Inquisition in Languedoc, thus laying the foundations of that Sektengeschichte which he published fifty years later. Munich offered such inexhaustible supplies for the Reformation that his collections overran all bounds. He completed only that part of his plan which included Lutheranism and the sixteenth century. The third volume, published in 1848, containing the theology of the Reformation, is the most solid of his writings. He had miscalculated, not his resources, of which only a part had come into action, but the possibilities of concentration and compression. The book was left a fragment when he had to abandon his study for the Frankfort barricades.

The peculiarity of his treatment is that he contracts the Reformation into a history of the doctrine of justification. He found that this and this alone was the essential point in Luther's mind, that he made it the basis of his argument, the motive of his separation, the root and principle of his religion. He believed that Luther was right in the cardinal importance he attributed to this doctrine in his system, and he in his turn recognised that it was the cause of all that followed, the source of the reformer's popularity and success, the sole insurmountable obstacle to every scheme of restoration. It was also, for him, the centre and the basis of his antagonism. That was the point that he attacked when he combated Protestantism, and he held all other elements of conflict cheap in comparison, deeming that they are not invariable, or not incurable, or not supremely serious. Apart from this, there was much in Protestantism that he admired, much in its effects for which he was grateful. With the Lutheran view of imputation, Protestant and Catholic were separated by an abyss. Without it, there was no lasting reason why they should be separate at all. Against the communities that hold it he stood in order of battle, and believed that he could scarcely hit too hard. But he distinguished very broadly the religion of the reformers from the religion of Protestants. Theological science had moved away from the symbolical books, the root dogma had been repudiated and contested by the most eminent Protestants, and it was an English bishop who wrote: "Fuit haec doctrina jam a multis annis ipsissimum Reformatae Ecclesiae opprobrium ac dedecus.—Est error non levis, error putidissimus." Since so many of the best writers resist or modify that which was the main cause, the sole ultimate cause, of disunion, it cannot be logically impossible to discover a reasonable basis for discussion. Therefore conciliation was always in his thoughts; even his Reformation was a treatise on the conditions of reunion. He long purposed to continue it, in narrower limits, as a history of that central doctrine by which Luther meant his church to stand or fall, of the reaction against it, and of its decline. In 1881, when Ritschl, the author of the chief work upon the subject, spent some days with Döllinger, he found him still full of these ideas, and possessing Luther at his fingers' ends.

This is the reason why Protestants have found him so earnest an opponent and so warm a friend. It was this that attracted him towards Anglicans, and made very many of them admire a Roman dignitary who knew the Anglo-Catholic library better than De Lugo or Ripalda. In the same spirit he said to Pusey: "Tales cum sitis jam nostri estis," always spoke of Newman's Justification as the greatest masterpiece of theology that England has produced in a hundred years, and described Baxter and Wesley as the most eminent of English Protestants—meaning Wesley as he was after 1st December 1767, and Baxter as the life-long opponent of that theory which was the source and the soul of the Reformation. Several Englishmen who went to consult him—Hope Scott and Archdeacon Wilberforce—became Catholics. I know not whether he urged them. Others there were, whom he did not urge, though his influence over them might have been decisive. In a later letter to Pusey he wrote: "I am convinced by reading your Eirenicon that we are united inwardly in our religious convictions, although externally we belong to two separated churches." He followed attentively the parallel movements that went on in his own country, and welcomed with serious respect the overtures which came to him, after 1856, from eminent historians. When they were old men, he and Ranke, whom, in hot youth, there was much to part, lived on terms of mutual goodwill. Döllinger had pronounced the theology of the Deutsche Reformation slack and trivial, and Ranke at one moment was offended by what he took for an attack on the popes, his patrimony. In 1865, after a visit to Munich, he allowed that in religion there was no dispute between them, that he had no fault to find with the Church as Döllinger understood it. He added that one of his colleagues, a divine whose learning filled him with unwonted awe, held the same opinion. Döllinger's growing belief that an approximation of part of Germany to sentiments of conciliation was only a question of time, had much to do with his attitude in Church questions after the year 1860. If history cannot confer faith or virtue, it can clear away the misconceptions and misunderstandings that turn men against one another. With the progress of incessant study and meditation his judgment on many points underwent revision; but with regard to the Reformation the change was less than he supposed. He learnt to think more favourably of the religious influence of Protestantism, and of its efficacy in the defence of Christianity; but he thought as before of the spiritual consequences of Lutheranism proper. When people said of Luther that he does not come well out of his matrimonial advice to certain potentates, to Henry and to Philip, of his exhortations to exterminate the revolted peasantry, of his passage from a confessor of toleration to a teacher of intolerance, he would not have the most powerful conductor of religion that Christianity has produced in eighteen centuries condemned for two pages in a hundred volumes. But when he had refused the test of the weakest link, judging the man by his totals, he was not less severe on his theological ethics.

Meinerseits habe ich noch eine andre schwere Anklage gegen ihn zu erheben, nämlich die, dass er durch seine falsche Imputationslehre das sittlich-religiöse Bewusstseyn der Menschen auf zwei Jahrhunderte hinaus verwirrt und corrumpirt hat (3rd July 1888).

The revolution of 1848, during which he did not hold his professorship, brought him forward uncongenially in active public life, and gave him the means of telling the world his view of the constitution and policy of the Church, and the sense and limits of liability in which he gave his advocacy. When lecturing on canon law he was accustomed to dwell on the strict limit of all ecclesiastical authority, admitting none but spiritual powers, and invoking the maxims of pontiffs who professed themselves guardians, not masters, of the established legislation—"Canones ecclesiae solvere non possumus, qui custodes canonum sumus." Acting on these principles, in the Paulskirche, and at Ratisbon, he vindicated Rome against the reproach of oppression, argued that society can only gain by the emancipation of the Church, as it claims no superiority over the State, and that both Gallicans and Jesuits are out of date. Addressing the bishops of Germany in secret session at Würzburg, he exhorted them to avail themselves fully of an order of things which was better than the old, and to make no professions of unconditional allegiance. He told them that freedom is the breath of the Catholic life, that it belongs to the Church of God by right divine, and that whatever they claimed must be claimed for others.

From these discourses, in which the scholar abandoned the details by which science advances for the general principles of the popular orator, the deductions of liberalism proceed as surely as the revolution from the title-page of Sieyès. It should seem that the key to his career lies there. It was natural to associate him with the men whom the early promise of a reforming pope inspired to identify the cause of free societies with the papacy which had Rosmini for an adviser, Ventura for a preacher, Gioberti for a prophet, and to conclude that he thus became a trusted representative, until the revolving years found him the champion of a vanished cause, and the Syllabus exposed the illusion and bore away his ideal. Harless once said of him that no good could be expected from a man surrounded by a ring of liberals. When Döllinger made persecution answer both for the decline of Spain and the fall of Poland, he appeared to deliver the common creed of Whigs; and he did not protest against the American who called him the acknowledged head of the liberal Catholics. His hopefulness in the midst of the movement of 1848, his ready acquiescence in the fall of ancient powers and institutions, his trust in Rome, and in the abstract rights of Germans, suggested a reminiscence of the Avenir in 1830.