"All, therefore, which Hume has made out, and this he must be considered to have made out, is that (at least in the imperfect state of our knowledge of natural agencies, which leaves it always possible that some of the physical antecedents may have been hidden from us,) no evidence can prove a miracle to any one who did not previously believe the existence of a being or beings with supernatural power; or who believes himself to have full proof that the character of the Being whom he recognizes is inconsistent with his having seen fit to interfere on the occasion in question." Mr. Mill proceeds to enlarge on this conclusion. "If we do not already believe in supernatural agencies, no miracle can prove to us their existence. The miracle itself, considered merely as an extraordinary fact, may be satisfactorily certified by our senses or by testimony; but nothing can ever prove that it is a miracle: there is still another possible hypothesis, that of its being the result of some unknown natural cause: and this possibility cannot be so completely shut out as to leave no alternative but that of admitting the existence and intervention of a being superior to nature. Those, however, who already believe in such a being have two hypotheses to choose from, a supernatural, and an unknown natural agency; and they have to judge which of the two is the most probable in the particular case. In forming this judgment, an important element of the question will be the conformity of the result to the laws of the supposed agent; that is, to the character of the Deity as they conceive it. But, with the knowledge which we now possess of the general uniformity of the course of nature, religion, following in the wake of science, has been compelled to acknowledge the government of the universe as being on the whole carried on by general laws, and not by special interpositions. To whoever holds this belief, there is a general presumption against any supposition of divine agency not operating through general laws, or, in other words, there is an antecedent improbability in every miracle, which, in order to outweigh it, requires an extraordinary strength of antecedent probability derived from the special circumstances of the case."(1) Mr. Mill rightly considers that it is not more difficult to estimate this than in the case of other probabilities. "We are seldom, therefore, without the means (when the circumstances of the case are at all known to us) of judging how far it is likely that such a cause should have existed at that time and place without manifesting its presence by some other marks, and (in the case of an unknown cause) without having hitherto manifested its existence in any other instance. According as this circumstance, or the falsity of the testimony, appears more improbable, that is, conflicts with an approximate generalization of a higher order, we believe the testimony, or disbelieve it; with a stronger or weaker degree of conviction, according to the preponderance: at least until we have sifted the matter further."(2) This is precisely Hume's argument weakened by the introduction of reservations which have no cogency.
"We have wished to avoid interrupting Mr. Mill's train of reasoning by any remarks of our own, and have, therefore, deferred till now the following observations regarding his criticism on Hume's argument.
In reducing Hume's celebrated doctrine to the very plain proposition that whatever is contradictory to a complete induction is incredible, Mr. Mill in no way diminishes its potency against miracles; and he does not call that proposition "harmless" in reference to its bearing on miracles, as Dr. Farrar evidently supposes, but merely in opposition to the character of a recondite and "dangerous heresy" assigned by dismayed theologians to so obvious and simple a principle. The proposition, however, whilst it reduces Hume's doctrine in the abstract to more technical terms, does not altogether represent his argument. Without asserting that experience is an absolutely infallible guide, Hume maintains that—" A wise man proportions his belief to the evidence. In such conclusions as are founded on an infallible experience, he expects the event with the last degree of assurance, and regards his past experience as a full proof of the future existence of that event. In other cases he proceeds with more caution, he weighs the opposite experiments: he considers which side is supported by the greater number of experiments: to that side he inclines with doubt and hesitation; and when at last he fixes his judgment, the evidence exceeds not what we properly call probability. All probability, then, supposes an opposition of experiments and observations, where the one side is found to overbalance the other, and to produce a degree of evidence proportioned to the superiority. "(l) After elaborating this proposition, Hume continues: "A miracle is a violation of the laws of nature; and as a firm and unalterable experience has established these laws, the proof against a miracle, from the very nature of the fact, is as entire as any argument from experience can possibly be imagined. Why is it more than probable that all men must die; that lead cannot, of itself, remain suspended in the air; that fire consumes wood, and is extinguished by water; unless it be that these events are found agreeable to the laws of nature, and there is required a violation of these laws, or, in other words, a miracle, to prevent them? Nothing is esteemed a miracle if it ever happen in the common course of nature. It is no miracle that a man seemingly in good health should die on a sudden; because such a kind of death, though more unusual than any other, has yet been frequently observed to happen. But it is a miracle that a dead man should come to life; because that has never been observed in any age or country. There must, therefore, be an uniform experience against every miraculous event, otherwise the event would not merit that appellation. And as an uniform experience amounts to a proof, there is here a direct and full proof, from the nature of the fact, against the existence of any miracle; nor can such a proof be destroyed, or the miracle rendered credible, but by an opposite proof which is superior. The plain consequence is, (and it is a general maxim worthy of our attention), 'That no testimony is sufficient to establish a miracle, unless the testimony be of such a kind, that its falsehood would be more miraculous than the fact which it endeavours to establish: and even in that case there is a mutual destruction of arguments, and the superior only gives us an assurance suitable to that degree of force which remains after deducting the inferior.' When any one tells me that he saw a dead man restored to life, I immediately consider with myself whether it be more probable that this person should either deceive or be deceived, or that the fact which he relates should really have happened. I weigh the one miracle against the other; and according to the superiority which 1 discover, I pronounce my decision, and always reject the greater miracle. If the falsehood of his testimony would be more miraculous than the event which he relates, then, and not till then, can he pretend to command my belief or opinion."(1)
The ground upon which Mr. Mill admits that a miracle may not be contradictory to complete induction is that it is not an assertion that a certain cause was not followed by a certain effect, but an allegation of the interference of an adequate counteracting cause. This does not, however, by his own showing, remove a miracle from the action of Hume's principle, but simply modifies the nature of the antecedent improbability. Mr. Mill qualifies his admission regarding the effect of the alleged counteracting cause, by the all-important words "if present;" for, in order to be valid, the reality of the alleged counteracting cause must be established, which is impossible, therefore the allegations fall to the ground. No one knows better than Mr. Mill that the assertion of a Personal Deity working miracles, upon which a miracle is allowed for a moment to come into court, cannot be proved, and, therefore, that it cannot stand in opposition to complete induction which Hume takes as his standard.
In admitting that Hume has made out, that no evidence can prove a miracle to any one who does not previously believe in a being of supernatural power willing to work miracles, Mr. Mill concedes everything to Hume, for his only limitation is based upon a supposition of mere personal belief in something which is not capable of proof, and which belief, therefore, is not more valid than any other purely imaginary hypothesis. The belief may seem substantial to the individual entertaining it, but, not being capable of proof, it cannot have weight with others, or in any way affect the Value of evidence in the abstract. That mere individual belief, apart from proof, should thus be advanced in limitation of a logical principle, seems to us most unwarranted, and at the most it can only be received as a statement of what practically takes place amongst illogical reason ers.
The assumption of a Personal Deity working miracles is, in fact, excluded by Hume's argument, and, although Mr. Mill apparently overlooks