630.
Conviction is belief in the possession of absolute truth on any matter of knowledge. This belief takes it for granted, therefore, that there are absolute truths; also, that perfect methods have been found for attaining to them; and finally, that every one who has convictions makes use of these perfect methods. All three notions show at once that the man of convictions is not the man of scientific thought; he seems to us still in the age of theoretical innocence, and is practically a child, however grown-up he may be. Whole centuries, however, have been lived under the influence of those childlike presuppositions, and out of them have flowed the mightiest sources of human strength. The countless numbers who sacrificed themselves for their convictions believed they were doing it for the sake of absolute truth. They were all wrong, however; probably no one has ever sacrificed himself for Truth; at least, the dogmatic expression of the faith of any such person has been unscientific or only partly scientific. But really, people wanted to carry their point because they believed that they must be in the right. To allow their belief to be wrested from them probably meant calling in question their eternal salvation. In an affair of such extreme importance the "will" was too audibly the prompter of the intellect. The presupposition of every believer of every shade of belief has been that he could not be confuted; if the counter-arguments happened to be very strong, it always remained for him to decry intellect generally, and, perhaps, even to set up the "credo quia absurdum est" as the standard of extreme fanaticism. It is not the struggle of opinions that has made history so turbulent; but the struggle of belief in opinions,—that is to say, of convictions. If all those who thought so highly of their convictions, who made sacrifices of all kinds for them, and spared neither honour, body, nor life in their service, had only devoted half of their energy to examining their right to adhere to this or that conviction and by what road they arrived at it, how peaceable would the history of mankind now appear! How much more knowledge would there be! All the cruel scenes in connection with the persecution of heretics of all kinds would have been avoided, for two reasons: firstly, because the inquisitors would above all have inquired of themselves, and would have recognised the presumption of defending absolute truth; and secondly, because the heretics themselves would, after examination, have taken no more interest in such badly established doctrines as those of all religious sectarians and "orthodox" believers.
631.
From the ages in which it was customary to believe in the possession of absolute truth, people have inherited a profound dislike of all sceptical and relative attitudes with regard to questions of knowledge; they mostly prefer to acquiesce, for good or evil, in the convictions of those in authority (fathers, friends, teachers, princes), and they have a kind of remorse of conscience when they do not do so. This tendency is quite comprehensible, and its results furnish no ground for condemnation of the course of the development of human reason. The scientific spirit in man, however, has gradually to bring to maturity the virtue of cautious forbearance, the wise moderation, which is better known in practical than in theoretical life, and which, for instance, Goethe has represented in "Antonio," as an object of provocation for all Tassos,—that is to say, for unscientific and at the same time inactive natures. The man of convictions has in himself the right not to comprehend the man of cautious thought, the theoretical Antonio; the scientific man, on the other hand, has no right to blame the former on that account, he takes no notice thereof, and knows, moreover, that in certain cases the former will yet cling to him, as Tasso finally clung to Antonio.
632.
He who has not passed through different phases of conviction, but sticks to the faith in whose net he was first caught, is, under all circumstances, just on account of this unchangeableness, a representative of atavistic culture; in accordance with this lack of culture (which always presupposes plasticity for culture), he is severe, unintelligent, unteachable, without liberality, an ever suspicious person, an unscrupulous person who has recourse to all expedients for enforcing his opinions because he cannot conceive that there must be other opinions; he is, in such respects, perhaps a source of strength, and even wholesome in cultures that have become too emancipated and languid, but only because he strongly incites to opposition: for thereby the delicate organisation of the new culture, which is forced to struggle with him, becomes strong itself.
633.
In essential respects we are still the same men as those of the time of the Reformation; how could it be otherwise? But the fact that we no longer allow ourselves certain means for promoting the triumph of our opinions distinguishes us from that age, and proves that we belong to a higher culture. He who still combats and overthrows opinions with calumnies and outbursts of rage, after the manner of the Reformation men, obviously betrays the fact that he would have burnt his adversaries had he lived in other times, and that he would have resorted to all the methods of the Inquisition if he had been an opponent of the Reformation. The Inquisition was rational at that time; for it represented nothing else than the universal application of martial law, which had to be proclaimed throughout the entire domain of the Church, and which, like all martial law, gave a right to the extremest methods, under the presupposition, of course, (which we now no longer share with those people), that the Church possessed truth and had to preserve it at all costs, and at any sacrifice, for the salvation of mankind. Now, however, one does not so readily concede to any one that he possesses the truth; strict methods of investigation have diffused enough of distrust and precaution, so that every one who violently advocates opinions in word and deed is looked upon as an enemy of our modern culture, or, at least, as an atavist. As a matter of fact the pathos that man possesses truth is now of very little consequence in comparison with the certainly milder and less noisy pathos of the search for truth, which is never weary of learning afresh and examining anew.
634.
Moreover, the methodical search for truth is itself the outcome of those ages in which convictions were at war with each other. If the individual had not cared about his "truth," that is to say, about carrying his point, there would have been no method of investigation; thus, however, by the eternal struggle of the claims of different individuals to absolute truth, people went on step by step to find irrefragable principles according to which the rights of the claims could be tested and the dispute settled. At first people decided according to authorities; later on they criticised one another's ways and means of finding the presumed truth; in the interval there was a period when people deduced the consequences of the adverse theory, and perhaps found them to be productive of injury and unhappiness; from which it was then to be inferred by every one that the conviction of the adversary involved an error. The personal struggle of the thinker at last so sharpened his methods that real truths could be discovered, and the mistakes of former methods exposed before the eyes of all.