Those, let us note by the way, who are accustomed to think the moral tone of the eighteenth century low and gross compared with that of the nineteenth, may usefully contrast these just and prudent word? of caution in extirpating error, with M. Renan's invitation to men whom he considers wrong in their interpretation of religion, to plant their error as widely and deeply as they can; and who are moreover themselves supposed to be demoralised, or else they would not be likely to acquiesce in a previous surrender of the universities to men whom they think in mortal error. Apart however from M. Renan, Condorcet's words merely assert the duty of setting to work to help on the change from false to true opinions with prudence, and this every sensible man admits. Our position is that in estimating the situation, in counting up and balancing the expediencies of an attack upon error at this or that point, nothing is to be set to the credit of error as such, nor is there anything in its own operations or effects to entitle it to a moment's respite. Every one would admit this at once in the case of physical truths, though there are those who say that some of the time spent in the investigation of physical truths might be more advantageously devoted to social problems. But in the case of moral and religious truths or errors, people, if they admit that nothing is to be set to the credit of error as such, still constantly have a subtle and practically mischievous confusion in their minds between the possible usefulness of error, and the possible expediency of leaving it temporarily undisturbed. What happens in consequence of such a confusion is this. Men leave error undisturbed, because they accept in a loose way the proposition that a belief may be 'morally useful without being intellectually sustainable,' They disguise their own dissent from popular opinions, because they regard such opinions as useful to other people. We are not now discussing the case of those who embrace a creed for themselves, on the ground that, though they cannot demonstrate its truth to the understanding, yet they find it pregnant with moralising and elevating characteristics. We are thinking of a very different attitude—that, namely, of persons who believe a creed to be not more morally useful than it is intellectually sustainable, so far as they themselves are concerned. To them it is pure and uncompensated error. Yet from a vague and general idea that what is useless error to them may be useful to others, they insist on doing their best to perpetuate the system which spreads and consecrates the error. And how do they settle the question? They reckon up the advantages, and forget the drawbacks. They detect and dwell on one or two elements of utility in the false belief or the worn-out institution, and leave out of all account the elements that make in the other direction.

Considering how much influence this vague persuasion has in encouraging a well-meaning hypocrisy in individuals, and a profound stagnation in societies, it may be well to examine the matter somewhat generally. Let us try to measure the force of some of the most usual pleas for error.

I. A false opinion, it may be said, is frequently found to have clustering around it a multitude of excellent associations, which do far more good than the false opinion that supports them, does harm. In the middle ages, for instance, there was a belief that a holy man had the gift of routing demons, of healing the sick, and of working divers other miracles. Supposing that this belief was untrue, supposing that it was an error to attribute the sudden death of an incredible multitude of troublesome flies in a church to the fact of Saint Bernard having excommunicated them, what then? The mistaken opinion was still associated with a deep reverence for virtue and sanctity, and this was more valuable, than the error of the explanation of the death of the flies was noxious or degrading.

The answer to this seems to be as follows. First, in making false notions the proofs or close associates of true ones, you are exposing the latter to the ruin which awaits the former. For example, if you have in the minds of children or servants associated honesty, industry, truthfulness, with the fear of hell-fire, then supposing this fear to become extinct in their minds,—which, being unfounded in truth, it is in constant risk of doing—the virtues associated with it are likely to be weakened exactly in proportion as that association was strong.

Second, for all good habits in thought or conduct there are good and real reasons in the nature of things. To leave such habits attached to false opinions is to lessen the weight of these natural or spontaneous reasons, and so to do more harm in the long run than effacement of them seems for a time to do good. Most excellences in human character have a spontaneous root in our nature. Moreover if they had not, and where they have not, there is always a valid and real external defence for them. The unreal defence must be weaker than the real one, and the substitution of a weak for a strong defence, where both are to be had, is not useful but the very opposite.

II. It is true, the objector would probably continue, that there is a rational defence for all excellences of conduct, as there is for all that is worthy and fitting in institutions. But the force of a rational defence lies in the rationality of the man to whom it is proffered. The arguments which persuade one trained in scientific habits of thought, only touch persons of the same kind. Character is not all pure reason. That fitness of things which you pronounce to be the foundation of good habits, may be borne in upon men, and may speak to them, through other channels than the syllogism. You assume a community of highly-trained wranglers and proficient sophisters. The plain fact is that, for the mass of men, use and wont, rude or gracious symbols, blind custom, prejudices, superstitions,—however erroneous in themselves, however inadequate to the conveyance of the best truth,—are the only safe guardians of the common virtues. In this sense, then, error may have its usefulness.

A hundred years ago this apology for error was met by those high-minded and interesting men, the French believers in human perfectibility, with their characteristic dogma,—of which Rousseau was the ardent expounder,—that man is born with a clear and unsophisticated spirit, perfectly able to discern all the simple truths necessary for common conduct by its own unaided light. His motives are all pure and unselfish and his intelligence is unclouded, until priests and tyrants mutilate the one and corrupt the other. We who have the benefit of the historic method, and have to take into account the medium that surrounds a human creature the moment it comes into the world, to say nothing of all the inheritance from the past which it brings within it into the world at the same moment, cannot take up this ground. We cannot maintain that everybody is born with light enough to see the rational defences of things for himself, without the education of institutions. What we do maintain is—and this is the answer to the plea for error at present under consideration—that whatever impairs the brightness of such light as a man has, is not useful but hurtful. Our reply to those who contend for the usefulness of error on the ground of the comparative impotence of rationality over ordinary minds, is something of this kind. Superstition, blind obedience to custom, and the other substitutes for a right and independent use of the mind, may accidentally and in some few respects impress good ideas upon persons who are too darkened to accept those ideas on their real merits. But then superstition itself is the main cause of this very darkness. To hold error is in so far to foster erroneous ways of thinking on all subjects; is to make the intelligence less and less ready to receive truth in all matters whatever. Men are made incapable of perceiving the rational defences, and of feeling rational motives, for good habits,—so far as they are thus incapable,—by the very errors which we are asked silently to countenance as useful substitutes for right reason. 'Erroneous motives,' as Condorcet has expressed this matter, 'have an additional drawback attached to them, the habit which they strengthen of reasoning ill. The more important the subject on which you reason ill, and the more you busy yourself about it, by so much the more dangerous do the influences of such a habit become. It is especially on subjects analogous to that on which you reason wrongly, or which you connect with it by habit, that such a defect extends most powerfully and most rapidly. Hence it is extremely hard for the man who believes himself obliged to conform in his conduct to what he considers truths useful to men, but who attributes the obligation to erroneous motives, to reason very correctly on the truths themselves; the more attention he pays to such motives, and the more importance he comes to attach to them, the more likely he will be to go wrong.'[[9]] So, in short, superstition does an immense harm by enfeebling rational ways of thinking; it does a little good by accidentally endorsing rational conclusions in one or two matters. And yet, though the evil which it is said to repair is a trifle beside the evil which it is admitted to inflict, the balance of expediencies is after all declared to be such as to warrant us in calling errors useful!

III. A third objection now presents itself to me, which I wish to state as strongly as possible. 'Even if a false opinion cannot in itself be more useful than a true one, whatever good habits may seem to be connected with it, yet,' it may be contended, 'relatively to the general mental attitude of a set of men, to their other notions and maxims, the false opinion may entail less harm than would be wrought by its mere demolition. There are false opinions so intimately bound up with the whole way of thinking and feeling, that to introduce one or two detached true opinions in their stead, would, even if it were possible, only serve to break up that coherency of character and conduct which it is one of the chief objects of moralists and the great art of living to produce. For a true opinion does not necessarily bring in its train all the other true opinions that are logically connected with it. On the contrary, it is only too notorious a fact in the history of belief, that not merely individuals but whole societies are capable of holding at one and the same time contradictory opinions and mutually destructive principles. On the other hand, neither does a false opinion involve practically all the evil consequences deducible from it. For the results of human inconsistency are not all unhappy, and if we do not always act up to virtuous principle, no more do we always work out to its remotest inference every vicious principle. Not insincerity, but inconsistency, has constantly turned the adherents of persecuting precepts into friends of tolerant practice.'

'It is a comparatively small thing to persuade a superstitious person to abandon this or that article of his superstition. You have no security that the rejection of the one article which you have displaced will lead to the rejection of any other, and it is quite possible that it may lead to all the more fervid an adhesion to what remains behind. Error, therefore, in view of such considerations may surely be allowed to have at least a provisional utility.'

Now undoubtedly the repudiation of error is not at all the same thing as embracing truth. People are often able to see the force of arguments that destroy a given opinion, without being able to see the force of arguments for the positive opinion that ought to replace it. They can only be quite sure of seeing both, when they have acquired not merely a conviction that one notion is false and another true, but have furthermore exchanged a generally erroneous way of thinking for a generally correct way. Hence the truly important object with every one who holds opinions which he deems it of the highest moment that others should accept, must obviously be to reach people's general ways of thinking; to stir their love of truth; to penetrate them with a sense of the difference in the quality of evidence; to make them willing to listen to criticism and new opinion; and perhaps above all to teach them to take ungrudging and daily trouble to clear up in their minds the exact sense of the terms they use.