Grammar of Assent

^1. But if so, if by certitude about a thing is to be understood the knowledge of its truth, let it be considered that what is once true is always true, and cannot fail, whereas what is once known need not always be known, and is capable of failing. It follows, that if I am certain of a thing, I believe it will remain what I now hold it to be, even though my mind should have the bad fortune to let it drop. Since mere argument is not the measure of assent, no one can be called certain of a proposition, whose mind does not spontaneously and promptly reject, on their first suggestion, as idle, as impertinent, as sophistical, any objections which are directed against its truth. No man is certain of a truth, who can endure the thought of the fact of its contradictory existing or occurring; and that not from any set purpose or effort to reject that thought, but, as I have said, by the spontaneous action of the intellect. What is contradictory to the truth, with its apparatus of argument, fades out of the mind as fast as it enters it; and though it be brought back to the mind ever so often by the pertinacity of an opponent, or by a voluntary or involuntary act of imagination, still that contradictory proposition and its arguments are mere phantoms and dreams, in the light of our certitude, and their very entering into the mind is the first step of their going out of it. Such is the position of our minds towards the heathen fancy that Enceladus lies under Etna; or, not to take so extreme a case, that Joanna Southcote was a messenger from heaven, or the Emperor Napoleon really had a star. Equal to this peremptory assertion of negative propositions is the revolt of the mind from suppositions incompatible with positive statements of which we are certain, whether abstract truths or facts; as that a straight line is the longest possible distance between its two extreme points, that Great Britain is in shape an exact square or circle, that I shall escape dying, or that my intimate friend is false to me.

We may indeed say, if we please, that a man ought not to have so supreme a conviction in a given case, or in any case whatever; and that he is therefore wrong in treating opinions which he does not himself hold, with this even involuntary contempt;—certainly, we have a right to say so, if we will; but if, in matter of fact, a man has such a conviction, if he is sure that Ireland is to the West of England, or that the Pope is the Vicar of Christ, nothing is left to him, if he would be consistent, but to carry his conviction out into this magisterial intolerance of any contrary assertion; and if he were in his own mind tolerant, I do not say patient (for patience and gentleness are moral duties, but I mean intellectually tolerant), of objections as objections, he would virtually be giving countenance to the views which those objections represented. I say I certainly should be very intolerant of such a notion as that I shall one day be Emperor of the French; I should think it too absurd even to be ridiculous, and that I must be mad before I could entertain it. And did a man try to persuade me that treachery, cruelty, or ingratitude was as praiseworthy as honesty and temperance, and that a man who lived the life of a knave and died the death of a brute had nothing to fear from future retribution, I should think there was no call on me to listen to his arguments, except with the hope of converting him, though he called me a bigot and a coward for refusing to inquire into his speculations. And if, in a matter in which my temporal interests were concerned, he attempted to reconcile me to fraudulent acts by what he called philosophical views, I should say to him, "Retro Satana," and that, not from any suspicion of his ability to reverse immutable principles, but from a consciousness of my own moral changeableness, and a fear, on that account, that I might not be intellectually true to the truth. This, then, from the nature of the case, is a main characteristic of certitude in any matter, to be confident indeed that that certitude will last, but to be confident of this also, that, if it did fail, nevertheless, the thing itself, whatever it is, of which we are certain, will remain just as it is, true and irreversible. If this be so, it is easy to instance cases of an adherence to propositions, which does not fulfil the conditions of certitude; for instance:—

(1.) How positive and circumstantial disputants may be on two sides of a question of fact, on which they give their evidence, till they are called to swear to it, and then how guarded and conditional their testimony becomes! Again, how confident are they in their rival accounts of a transaction at which they were present, till a third person makes his appearance, whose word will be decisive about it! Then they suddenly drop their tone, and trim their statements, and by provisos and explanations leave themselves loopholes for escape, in case his testimony should turn out to their disadvantage. At first no language could be too bold or absolute to express the distinctness of their knowledge on this side or that; but second thoughts are best, and their giving way shows that their belief does not come up to the mark of certitude.

(2.) Again, can we doubt that many a confident expounder of Scripture, who is so sure that St. Paul meant this, and that St. John and St. James did not mean that, would be seriously disconcerted at the presence of those Apostles, if their presence were possible, and that they have now an especial "boldness of speech" in treating their subject, because there is no one authoritatively to set them right, if they are wrong?

(3.) Take another instance, in which the absence of certitude is professed from the first. Though it is a matter of faith with Catholics that miracles never cease in the Church, still that this or that professed miracle really took place, is for the most part only a matter of opinion, and when it is believed, whether on testimony or tradition, it is not believed to the exclusion of all doubt, whether about the fact or its miraculousness. Thus I may believe in the liquefaction of St. Pantaleon's blood, and believe it to the best of my judgment to be a miracle, yet, supposing a chemist offered to produce exactly the same phenomena under exactly similar circumstances by the materials put at his command by his science, so as to reduce what seemed beyond nature within natural laws, I should watch with some suspense of mind and misgiving the course of his experiment, as having no Divine Word to fall back upon as a ground of certainty that the liquefaction was miraculous.

(4.) Take another virtual exhibition of fear; I mean irritation and impatience of contradiction, vehemence of assertion, determination to silence others,—these are the tokens of a mind which has not yet attained the tranquil enjoyment of certitude. No one, I suppose, would say that he was certain of the plurality of worlds: that uncertitude on the subject is just the explanation, and the only explanation satisfactory to my mind, of the strange violence of language which has before now dishonoured the philosophical controversy upon it. Those who are certain of a fact are indolent disputants; it is enough for them that they have the truth; and they have little disposition, except at the call of duty, to criticize the hallucinations of others, and much less are they angry at their positiveness or ingenuity in argument; but to call names, to impute motives, to accuse of sophistry, to be impetuous and overbearing, is the part of men who are alarmed for their own position, and fear to have it approached too nearly. And in like manner the intemperance of language and of thought, which is sometimes found in converts to a religious creed, is often attributed, not without plausibility (even though erroneously in the particular case), to some flaw in the completeness of their certitude, which interferes with the harmony and repose of their convictions.