| David Hume An
Enquiry Concerning Human Understanding
Section X
Editorial Note
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edited excerpt from the book, originally published in 1748.
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Section
X: Of Miracles Part I
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Our evidence for the
truth of the Christian religion is less than the evidence for the
truth of our senses. Because, even with the first authors of our
religion [the Apostles], it was no greater; and it is evident it
must diminish in passing from them to their disciples. Nor can
anyone rest as much confidence in their testimony, as [they can
place] in the immediate object of his senses. But a weaker evidence
[testimony] can never destroy a stronger [the senses]; and
therefore, were the doctrine of the real presence ever so clearly
revealed in [the testimony of] scripture, it were directly contrary
to the rules of just reasoning to give our assent to it. It
contradicts sense, though both the scripture and tradition, on which
it is supposed to be built, carry not such evidence with them as
sense; when they are considered merely as external evidences, and
are not brought home to every one’s breast, by the immediate
operation of the Holy Spirit.
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I flatter myself,
that I have discovered an argument, which, if just, will, with the
wise and learned, be an everlasting check to all kinds of
superstitious delusion, and consequently, will be useful as long as
the world endures. For so long, I presume, will the accounts of
miracles and prodigies be found in all history, sacred and profane.
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Though experience be
our only guide in reasoning concerning matters of fact; it must be
acknowledged, that this guide is not altogether infallible, but in
some cases is apt to lead us into errors. One, who in our climate,
should expect better weather in any week of June than in one of
December, would reason justly, and conformably to experience; but it
is certain, that he may happen, in the event, to find himself
mistaken. However, we may observe, that, in such a case, he would
have no cause to complain of experience; because it commonly informs
us beforehand of the uncertainty, by that contrariety of events,
which we may learn from a diligent observation. All effects follow
not with like certainty from their supposed causes. Some events are
found, in all countries and all ages, to have been constantly
conjoined together: Others are found to have been more variable, and
sometimes to disappoint our expectations; so that, in our reasonings
concerning matter of fact, there are all imaginable degrees of
assurance, from the highest certainty [or proof] to the lowest
[probability].
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A wise man,
therefore, 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. A hundred
instances or experiments on one side, and fifty on another, afford a
doubtful expectation of any event; though a hundred uniform
experiments, with only one that is contradictory, reasonably beget a
pretty strong degree of assurance. In all cases, we must balance the
opposite experiments, where they are opposite, and deduct the
smaller number from the greater, in order to know the exact force of
the superior evidence.
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To apply these
principles to a particular instance; we may observe, that there is
no species of reasoning more common, more useful, and even necessary
to human life, than that which is derived from the testimony of men,
and the reports of eye-witnesses and spectators. This species of
reasoning, perhaps, one may deny to be founded on the relation of
cause and effect. I shall not dispute about a word. It will be
sufficient to observe that our assurance in any argument of this
kind is derived from no other principle than our observation of the
veracity of human testimony, and of the usual conformity of facts to
the reports of witnesses. It being a general maxim [or rule] . . .
that all the inferences [connecting two things to one another] are
founded merely on our experience of their constant and regular
conjunction; it is evident, that we ought not to make an exception
to this maxim in favor of human testimony. . . . [The testimony of
a] man delirious, or noted for falsehood and villainy, has no manner
of authority with us.
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And as the evidence,
derived from witnesses and human testimony, is founded on past
experience, so it varies with the experience, and is regarded either
as a proof or a probability, according as the conjunction between
any particular kind of report and any kind of object has been found
to be constant or variable. There are a number of circumstances to
be taken into consideration in all judgments of this kind; and the
ultimate standard, by which we determine all disputes, that may
arise concerning them, is always derived from experience and
observation. Where this experience is not entirely uniform on any
side, it is attended with an unavoidable contrariety in our
judgments, and with the same opposition and mutual destruction of
argument as in every other kind of evidence. We frequently hesitate
concerning the reports of others. We balance the opposite
circumstances, which cause any doubt or uncertainty; and when we
discover a superiority on any side, we incline to it; but still with
a diminution of assurance, in proportion to the force of its
[opposing evidence].
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This contrariety of
evidence, in the present case, may be derived from several different
causes; from the opposition of contrary testimony; from the
character or number of the witnesses; from the manner of their
delivering their testimony; or from the union of all these
circumstances. We entertain a suspicion concerning any matter of
fact, when the witnesses contradict each other; when they are but
few, or of a doubtful character; when they have an interest in what
they affirm; when they deliver their testimony with hesitation, or
on the contrary, with too violent asseverations. There are many
other particulars of the same kind, which may diminish or destroy
the force of any argument, derived from human testimony.
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Suppose, for
instance, that the fact, which the testimony endeavors to establish,
partakes of the extraordinary and the marvelous; in that case, the
evidence, resulting from the testimony, admits of a [reduction] in
proportion as the fact is more or less unusual. The reason why we
place any credit in witnesses and historians, is . . . because we
are accustomed to find a conformity between [testimony and reality].
But when the fact attested is such a one as has seldom fallen under
our observation, here is a contest of two opposite experiences; of
which the one destroys the other, as far as its force goes, and the
superior can only operate on the mind by the force, which remains.
The very same principle of experience, which gives us a certain
degree of assurance in the testimony of witnesses, gives us also, in
this case, another degree of assurance against the fact, which they
endeavor to establish; from which contradiction there necessarily
arises a counterpoise, and mutual destruction of belief and
authority.
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The incredibility of
a fact might invalidate [the claims of any] authority.
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The Indian prince,
who refused to believe [testimony] concerning the effects of frost,
reasoned [correctly]. And it naturally required very strong
testimony to [agree to the] facts with which he was [in his own
experience] unacquainted, and which bore so little [similarity] to
those events of which he had had constant and uniform experience.
Though they were not contrary to his experience, they were not
conformable to it. No [person living in southern India] could have
experience that water did not freeze in cold climates. This is
placing nature in a situation quite unknown to him; and it is
impossible for him to tell [in advance of observation] what will
result from it. It is making a new experiment, the consequence of
which is always uncertain. One may sometimes conjecture from analogy
what will follow; but still this is but conjecture. And it must be
confessed, that, in the present case of freezing, the event follows
contrary to the rules of analogy, and is such as a rational Indian
would not look for. The operations of cold upon water are not
gradual, according to the degrees of cold; but whenever it comes to
the freezing point, the water passes in a moment, from the utmost
liquidity to perfect hardness. Such an event, therefore, may be
denominated extraordinary, and requires a pretty strong testimony,
to render it credible to people in a warm climate. But still it is
not miraculous, nor contrary to uniform experience of the course of
nature in cases where all the circumstances are the same. The
inhabitants of Sumatra [near the equator] have always seen water
fluid in their own climate, and the freezing of their rivers ought
to be deemed a prodigy: But they never saw water in Moscow during
the winter; and therefore they cannot reasonably be positive what
would there be the consequence.
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But in order to
increase the probability against the testimony of witnesses, let us
suppose, that the fact, which they affirm, instead of being only
marvelous, is really miraculous; and suppose also, that the
testimony considered apart and in itself, amounts to an entire
proof; in that case, there is proof against proof, of which the
strongest must prevail, but still with a diminution of its force, in
proportion to that of its antagonist.
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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 a uniform experience
against every miraculous event, otherwise the event would not merit
that appellation. And as a 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. . . . Sometimes an event may not, in
itself, seem to be contrary to the laws of nature. And yet, if it
were real, it might, by reason of some circumstances, be a miracle.
. . . The raising of a house or ship into the air is a visible
miracle. The raising of a feather, when the wind [does not provide
the] force required for that purpose, is as real a miracle, though
not so [obviously contrary to the laws of nature].
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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 endeavors 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 anyone 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 I 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.
Of Miracles
Part II
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IN the foregoing reasoning . . .
we have been a great deal too liberal in our concession.
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For first, there is not to be found, in
all history, any miracle attested by a sufficient number of men, of
such unquestioned good sense, education, and learning, as to secure
us against all delusion in themselves; of such undoubted integrity,
as to place them beyond all suspicion of any design to deceive
others; of such credit and reputation in the eyes of mankind, as to
have a great deal to lose in case of their being detected in any
falsehood; and at the same time, attesting facts performed in such a
public manner and in so celebrated a part of the world, as to render
the detection unavoidable: all which circumstances are requisite to
give us a full assurance in the testimony of men.
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Secondly. We may observe in human
nature a principle which, if strictly examined, will be found to
diminish extremely the assurance, which we might, from human
testimony, have in any kind of prodigy. The maxim, by which we
commonly conduct ourselves in our reasonings, is, that the objects,
of which we have no experience, resembles those, of which we have;
that what we have found to be most usual is always most probable;
and that where there is an opposition of arguments, we ought to give
the preference to such as are founded on the greatest number of past
observations. But though, in proceeding by this rule, we readily
reject any fact which is unusual and incredible in an ordinary
degree; yet in advancing farther, the mind observes not always the
same rule; but when anything is affirmed utterly absurd and
miraculous, it rather the more readily admits of such a fact, upon
account of that very circumstance, which ought to destroy all its
authority. The passion of surprise and wonder, arising from
miracles, being an agreeable emotion, gives a sensible tendency
towards the belief of those events, from which it is derived. And
this goes so far, that even those who cannot enjoy this pleasure
immediately, nor can believe those miraculous events, of which they
are informed, yet love to partake of the satisfaction at second-hand
or by rebound, and place a pride and delight in exciting the
admiration of others.
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With what greediness are the miraculous
accounts of travelers received, their descriptions of sea and
land monsters, their relations of wonderful adventures, strange men,
and uncouth manners? . . .
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Eloquence, when at its highest pitch,
leaves little room for reason or reflection; but addressing itself
entirely to the fancy or the affections, captivates the willing
hearers, and subdues their understanding. . . .
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The many instances of forged miracles,
and prophecies, and supernatural events, which, in all ages, have
either been detected by contrary evidence, or which detect
themselves by their absurdity, prove sufficiently the strong
propensity of mankind to the extraordinary and the marvelous, and
ought reasonably to beget a suspicion against all relations of this
kind. This is our natural way of thinking, even with regard to the
most common and most credible events. For instance: There is no kind
of report which rises so easily, and spreads so quickly, especially
in country places and provincial towns, as those concerning
marriages; insomuch that two young persons of equal condition never
see each other twice, but the whole neighborhood immediately join
them together. The pleasure of telling a piece of news so
interesting, of propagating it, and of being the first reporters of
it, spreads the intelligence. And this is so well known, that no man
of sense gives attention to these reports, till he find them
confirmed by some greater evidence. Do not the same passions, and
others still stronger, incline the generality of mankind to believe
and report, with the greatest vehemence and assurance, all religious
miracles?
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Thirdly. It forms a strong presumption
against all supernatural and miraculous relations, that they are
observed chiefly to abound among ignorant and barbarous nations; or
if a civilized people has ever given admission to any of them, that
people will be found to have received them from ignorant and
barbarous ancestors, who transmitted them with that inviolable
sanction and authority, which always attend received opinions. When
we peruse the first histories of all nations, we are apt to imagine
ourselves transported into some new world; where the whole frame of
nature is disjointed, and every element performs its operations in a
different manner, from what it does at present. Battles,
revolutions, pestilence, famine and death, are never the effect of
those natural causes, which we experience. Prodigies, omens,
oracles, judgments, quite obscure the few natural events, that are
intermingled with them. But as the former grow thinner every page,
in proportion as we advance nearer the enlightened ages, we soon
learn, that there is nothing mysterious or supernatural in the case,
but that all proceeds from the usual propensity of mankind towards
the marvelous, and that, though this inclination may at intervals
receive a check from sense and learning, it can never be thoroughly
extirpated from human nature.
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It is strange, a judicious reader is
apt to say, upon the perusal of these wonderful historians, that
such prodigious events never happen in our days. But it is nothing
strange, I hope, that men should lie in all ages. You must surely
have seen instances enough of that frailty. . . . .
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It may add as a fourth reason, which
diminishes the authority of prodigies, that there is no testimony
for any, even those which have not been expressly detected, that is
not opposed by an infinite number of witnesses; so that not only the
miracle destroys the credit of testimony, but the testimony destroys
itself. To make this the better understood, let us consider, that,
in matters of religion, whatever is different is contrary; and that
it is impossible the religions of ancient Rome, of Turkey, of Siam,
and of China should, all of them, be established on any solid
foundation, Every miracle, therefore, pretended to have been wrought
in any of these religions (and all of them abound in miracles), as
its direct scope is to establish the particular system to which it
is attributed; so has it the same force, though more indirectly, to
overthrow every other system. In destroying a rival system, it
likewise destroys the credit of those miracles, on which that system
was established; so that all the prodigies of different religions
are to be regarded as contrary facts, and the evidences of these
prodigies, whether weak or strong, as opposite to each other.
According to this method of reasoning, when we believe any miracle
of [Mohammed] or his successors, we have for our warrant the
testimony of a few barbarous Arabians: and on the other hand, we are
to regard the authority of [great Roman authors] and, in short, of
all the authors and witnesses, Grecian, Chinese, and Roman Catholic,
who have related any miracle in their particular religion. I say, we
are to regard their testimony in the same light as if they had
[explicitly] mentioned that [Islamic] miracle, and had in express
terms contradicted it, with the same certainty as they have for the
miracle they relate. This argument may appear over subtle and
refined; but is not in reality different from the reasoning of a
judge, who supposes, that the credit of two witnesses, maintaining a
crime against any one, is destroyed by the testimony of two others,
who affirm him to have been two hundred leagues distant, at the same
instant when the crime is said to have been committed.
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. . .
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Is the consequence just, because some
human testimony has the utmost force and authority in some cases,
when it relates [some ancient Roman] battle, that therefore all
kinds of testimony must, in all cases, have equal force and
authority? Suppose that [competing Roman] factions had, each of
them, claimed the victory in these battles, and that the historians
of each party had uniformly ascribed the advantage to their own
side. How could mankind, at this distance, have been able to
determine between them? The contrariety is equally strong between
the miracles related by [Greek and Roman historians], and those
delivered by [Christians].
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No means of detection remain
[concerning testimony about distant past events], but those which
must be drawn from the very testimony itself of the reporters: and
these, though always sufficient with the judicious and knowing, are
commonly too fine to fall under the comprehension of the
[uneducated].
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Upon the whole, then, it appears, that
no testimony for any kind of miracle has ever amounted to a
probability, much less to a proof; and that, even supposing it
amounted to a proof, it would be opposed by another proof; derived
from the very nature of the fact, which it would endeavor to
establish. It is experience only, which gives authority to human
testimony; and it is the same experience, which assures us of the
laws of nature. When, therefore, these two kinds of experience are
contrary, we have nothing to do but subtract the one from the other,
and embrace an opinion, either on one side or the other, with that
assurance which arises from the remainder. But according to the
principle here explained, this subtraction, with regard to all
popular religions, amounts to an entire annihilation; and therefore
we may establish it as a maxim, that no human testimony can have
such force as to prove a miracle, and make it a just foundation for
any such system of religion.
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. . .
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But suppose, that all the historians
who treat of England, should agree, that, on the first of January,
1600, Queen Elizabeth died; that both before and after her death she
was seen by her physicians and the whole court, as is usual with
persons of her rank; that her successor was acknowledged and
proclaimed by the parliament; and that, after being interred a
month, she again appeared, resumed the throne, and governed England
for three years: I must confess that I should be surprised at the
concurrence of so many odd circumstances, but should not have the
least inclination to believe so miraculous an event. I should not
doubt of her pretended death, and of those other public
circumstances that followed it: I should only assert it to have been
pretended, and that it neither was, nor possibly could be real. You
would in vain object to me the difficulty, and almost impossibility
of deceiving the world in an affair of such consequence; the wisdom
and solid judgment of that renowned queen; with the little or no
advantage which she could reap from so poor an artifice: all this
might astonish me; but I would still reply, that the knavery and
folly of men are such common phenomena, that I should rather believe
the most extraordinary events to arise from their concurrence, than
admit of so signal a violation of the laws of nature.
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But should this miracle be ascribed to
any new system of religion; men, in all ages, have been so much
imposed on by ridiculous stories of that kind, that this very
circumstance would be a full proof of a cheat, and sufficient, with
all men of sense, not only to make them reject the fact, but even
reject it without farther examination. Though the Being to whom the
miracle is ascribed, be, in this case, Almighty, it does not, upon
that account, become a whit more probable. . . .
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. . .
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I am the better pleased with the method
of reasoning here delivered, as I think it may serve to confound
those dangerous friends or disguised enemies to the Christian
Religion, who have undertaken to defend it by the principles of
human reason. Our most holy religion is founded on Faith, not on
reason; and it is a sure method of exposing it to put it to such a
trial as it is, by no means, fitted to endure. To make this more
evident, let us examine those miracles, related in scripture; and
not to lose ourselves in too wide a field, let us confine ourselves
to such as we find in the [Old Testament], which we shall examine,
according to the principles of these pretended Christians, not as
the word or testimony of God himself, but as the production of a
mere human writer and historian. Here then we are first to consider
a book, presented to us by a barbarous and ignorant people, written
in an age when they were still more barbarous, and in all
probability long after the facts which it relates, corroborated by
no concurring testimony, and resembling those fabulous accounts,
which every nation gives of its origin. Upon reading this book, we
find it full of prodigies and miracles. It gives an account of a
state of the world and of human nature entirely different from the
present: of our fall from that state: of the age of man, extended to
near a thousand years: of the destruction of the world by a deluge:
of the arbitrary choice of one people, as the favorites of heaven;
and that people the countrymen of the author: of their deliverance
from bondage by prodigies the most astonishing imaginable: I desire
any one to lay his hand upon his heart, and after a serious
consideration declare, whether he thinks that the falsehood of such
a book, supported by such a testimony, would be more extraordinary
and miraculous than all the miracles it relates; which is, however,
necessary to make it be received, according to the measures of
probability above established.
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What we have said of miracles may be
applied, without any variation, to prophecies; and indeed, all
prophecies are real miracles, and as such only, can be admitted as
proofs of any revelation. If it did not exceed the capacity of human
nature to foretell future events, it would be absurd to employ any
prophecy as an argument for a divine mission or authority from
heaven. So that, upon the whole, we may conclude, that the Christian
Religion not only was at first attended with miracles, but even a t
this day cannot be believed by any reasonable person without one.
Mere reason is insufficient to convince us of its veracity: and
whoever is moved by Faith to assent to it, is conscious of a
continued miracle in his own person, which subverts all the
principles of his understanding, and gives him a determination to
believe what is most contrary to custom and experience.
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