The Cartesian proofs have been much and keenly discussed. The one

which founds on the fact of our existence and its limitations is

manifestly _a posteriori_. The other two both proceed from the idea

of a perfect being. The first is, that the idea of an all-perfect and

unlimited being is involved in the very consciousness of imperfection

and limitation. The imperfect can only be seen in the light of the

perfect; the finite cannot be conceived of except in relation to the

infinite. But can a finite and imperfect cause--like the human mind

or the outward world--be reasonably supposed to originate the idea of

an infinite and perfect being? Descartes holds that it cannot; that

the idea of an infinite and perfect being can only be explained by

the existence and operation of such a being. Was he correct in this

judgment? Perhaps not; but what has been urged in refutation of it

is probably by no means conclusive. It has been said that the ideas

of infinity and perfection are mere generalisations from experience.

But this is a statement which can only be proved on the principles

of sensationalism, and never has been proved. It has been likewise

said that these ideas are purely subjective, or, in other words,

that there may be nothing whatever to correspond to them. But this

is a meaningless collocation of words. No finite mind can conceive

the infinite, for example, as within itself at all. The human mind

can only think of the infinite as without itself. If the infinite

be not objective, the idea of the infinite is false and delusive.

The infinite, it has been further objected, means merely what is not

finite; and the perfect what is not imperfect. So be it; the argument

is as valid if the words be taken in that sense as in any other. Only

do not add, as some do, that the perfect and the imperfect, the finite

and the infinite, are mere verbal correlatives. Such a proposition can

be spoken, but it cannot be thought; and it is most undesirable to

divorce thought from speech. It has also been urged that all men have

not the idea of perfection; that different men have different ideas

thereof; and that in each man who possesses it the idea is constantly

changing. This must be granted; but it does not affect the argument,

which is founded on the existence of the idea of a perfect being, and

not on the perfection of the idea itself.

The second form of the Cartesian argument is, that God cannot be

thought of as a perfect Being unless He be also thought of as a

necessarily existent Being; and that, therefore, the thought of God

implies the existence of God. "Just as because," for example, "the

equality of its three angles to two right angles is necessarily

comprised in the idea of a triangle, the mind is firmly persuaded that

the three angles of a triangle are equal to two right angles; so, from

its perceiving necessary and eternal existence to be comprised in the

idea which it has of an all-perfect Being, it ought manifestly to

conclude that this all-perfect Being exists." Kant met this argument

thus: "It is a contradiction that there should be a triangle the three

angles of which are not equal to two right angles, or that there

should be a God who is not necessarily existent. I cannot in either

case retain the subject and do away with the predicate. If I assume

a triangle, I must take it with its three angles. If I assume a God,

I must grant Him to be necessarily existent. But why should I assume

either that there is a triangle or that there is a God? I may annul

the subject in both cases, and then there will be no contradiction in

annulling the predicate in both cases. There may be no such thing as a

triangle, why should there be such a Being as God?"

This reasoning of Kant has generally been accepted as conclusive. It

does not appear to me to be so. He ought not merely to have asserted

but to have shown that we can annul the subject in either of the cases

mentioned. We obviously cannot. I can say "there is no triangle," but

instead of annulling that implies the idea of a triangle, and from

the idea of a triangle it follows that its three angles are equal to

two right angles. In like manner I can say "there is no God," but

that is not to annul but to imply the idea of God, and it is from

the idea of God that, according to Descartes, the existence of God

necessarily follows. Kant should have seen that the proposition "there

is no God" could be no impediment to an argument the very purpose

of which is to prove that that proposition is a self-contradiction.

It is futile to meet this by saying that existence ought not to be

included in any mere conception, for it is not existence but necessary

existence which is included in the conception reasoned from, and that

God can be thought of otherwise than as necessarily existent requires

to be proved, not assumed. To affirm that existence cannot be given

or reached through thought, but only through sense and sensuous

experience, can prove nothing except the narrowness of the philosophy

on which such a thesis is based.

Cudworth, Leibnitz, and Mendelssohn modified the Cartesian argument

last specified in ways which do not greatly differ from one another. It

may be doubted whether their modifications were improvements.

In the eighteenth century there were elaborated a great many proofs

which claimed to be _a priori_ theistic demonstrations based on the

notions of existence and causality. Assuming that something is,

and that nothing cannot be the cause of something, these arguments

attempted to establish that there must be an unoriginated Being of

infinite perfection, and possessed of the attributes which we ascribe

to God. The most famous of them was, perhaps, that of Dr Samuel Clarke,

contained in the Boyle Lecture of 1704. But Dr Richard Fiddes, the

Rev. Colin Campbell, Mr Wollaston, Moses Lowman, the Chevalier Ramsay,

Dean Hamilton, and many others, devised ingenious demonstrations

of a similar nature. It is impossible for me to discuss here their

merits and demerits. Probably not one of them has completely satisfied

more than a few speculative minds. They are certainly not fitted to

carry conviction to the ordinary practical understanding. Yet it is

not easy to detect flaws in some of them; and the more carefully they

are studied, the more, I am inclined to think, will it be recognised

that they are pervaded by a substantial vein of truth. They attempted

logically to evolve what was implied in certain primary intuitions or

fundamental conditions of the mind, and although they may not have

accomplished all that they aimed at, they have at least succeeded

in showing that unless there exists an eternal, infinite, and

unconditioned Being, the human mind is, in its ultimate principles,

self-contradictory and delusive.[49]

[49] See Appendix XXXVIII.

There must, for example, unless consciousness and reason are utterly

untrustworthy, be an eternal Being. Present existence necessarily

implies to the human intellect eternal existence. The man who says

that a finite mind cannot rise to the idea of an eternal Being talks

foolishly, for all the thinking of a finite mind implies belief in

what he says is inaccessible to human thought. No man can thoughtfully

affirm his own existence, or the existence even of a passing fancy of

his mind, or of a grain of sand, without feeling that that affirmation

as certainly implies that something existed from all eternity as any

mathematical demonstration whatever implies its conclusion. And this

truth, that the most transient thing cannot be conceived of as existing

unless an eternal Being exist, may be syllogistically expressed and

exhibited in a variety of ways, because the contradictions involved

in denying it are numerous. This is what has been done by the authors

above mentioned with much ingenuity, and by some of them in a manner

which never has been and never can be refuted. It may be doubted

whether they did wisely in throwing their arguments into syllogistic

form; but as nobody ventures to undertake the refutation of them, they

must be admitted to be substantially valid. The reasonings of men like

Clarke and Fiddes, Lowman and Ramsay, have sufficiently proved that

whoever denies such propositions as these,--Something has existed from

eternity; The eternal Being must be necessarily existent, immutable,

and independent; There is but one unoriginated Being in the universe;

The unoriginated Being must be unlimited or perfect in all its

attributes, &c.,--inevitably falls into manifest absurdities.

This, it may be objected, is not equivalent to a proof of the existence

of an infinite and eternal Being. It leads merely to the alternative,

either an infinite and eternal Being exists, or the consciousness and

reason of man cannot be trusted. The absolute sceptic will rejoice to

have the alternative offered to him; that the human mind is essentially

untrustworthy is precisely what he maintains. I answer that I admit

that the arguments in question do not amount to a direct positive

proof, but that they constitute a _reductio ad absurdum_, which is just

as good, and that if they do not exclude absolute scepticism, it is

merely because absolute scepticism is willing to accept what is absurd.

I am not going to examine absolute scepticism at present. I shall have

something to say regarding it when I treat of antitheistic theories.

Just now it is sufficient simply to point out that if disbelief in an

infinite, self-existent, eternal Being necessarily implies belief in

the untrustworthiness of all our mental processes, the absolute sceptic

is the only man who can consistently disbelieve in God. Unless we are

prepared to believe that no distinction can be established between

truth and error--that there is no certainty that our senses and our

understandings are not at every moment deceiving us--no real difference

between our perceptions when we are awake and our visions when we

are asleep--no ground of assurance that we are not as much deluded

when following a demonstration of Euclid as any have been who busied

themselves in attempting to square the circle,--we must accept all

arguments which show that disbelief of the existence of an infinite and

eternal Being logically involves a self-contradiction or an absurdity,

as not less valid than a direct positive demonstration of the existence

of such a Being. If, although I am constrained to conclude that there

is an infinite and eternal Being, I may reject the conclusion on the

supposition that reason is untrustworthy, I am clearly bound, in

self-consistency, to set aside the testimony of my senses also by the

assumption that they are habitually delusive. When any view or theory

is shown to involve absolute scepticism it is sufficiently refuted,

for absolute scepticism effaces the distinction between reason and

unreason, and practically prefers unreason to reason.

II.

The _a priori_ arguments have a value independent of their truth and

of their power to produce conviction. True or false, persuasive or

merely perplexing, they are admirable means of disciplining the mind

distinctly to apprehend certain ideas which experience cannot yield,

yet which must be comprehended in any worthy view taken of God. They

help us steadily to contemplate and patiently to consider such abstract

and difficult thoughts as those of being, absolute being, necessary

being, cause, substance, perfection, infinity, eternity, &c.; and this

is a service so great, that it may safely be said--as some writer whose

name I cannot recall has said--that they will never be despised so long

as speculative thinking is held in repute.

While believing that several of these arguments on the whole accomplish

what they undertake, I am not prepared to maintain that any of them

are faultless or even conclusive throughout. They are all, probably,

much too formal and elaborate, so far as any directly practical

purpose is concerned. It ought to be constantly kept in view that

they presuppose an immediate apprehension of the infinite, and that

their value consists entirely in establishing that that apprehension

implies the reality and presence of God. The simplest mode of doing

this must be the best. It may be thought that no reasoning at all is

needed; that the intuition does not require to be supplemented by any

inference; that if the infinite be apprehended, the living God must be

self-evidently present to the human mind. But this is plainly a hasty

view. Few atheists will deny that something is infinite, or that they

immediately apprehend various aspects of infinity. What they refuse

to acknowledge is, that the apprehension of the infinite implies

more than the boundlessness of space, the eternity of time, and the

self-existence of matter. There is certainly some reasoning needed in

order to show that this interpretation of the intuition is inadequate.

But such reasoning cannot be too direct, for otherwise the function of

the intuition is almost certain to be obscured, and argument is almost

certain to be credited with accomplishing far more than it really

effects.

According to the view of the theistic argumentation which has been

given in the present course of lectures, all that is now necessary to

complete the theistic proof is very simple indeed. The universe has

been shown to have an inconceivably powerful and intelligent cause,

a Supreme Creator, who has dealt bountifully with all His creatures,

who has given to men a moral law, and who has abundantly manifested

in history that He loveth righteousness and hateth iniquity. We are

further conscious of having ideas or intuitions of infinity, eternity,

necessary existence, and perfection. We may dispute as to whence and

how we have got them, but we cannot deny that we possess them. Were

any person, for example, to affirm that he did not believe that there

is a self-existent or necessary being--a being which derived its

existence from no other and depends upon no other but is what it is in

and of itself alone--we should be entitled to tell him either that he

did not know the meaning of what he said, or that he did not himself

believe what he said. But if we undoubtedly possess these ideas, they

must, unless they are wholly delusive--which is what we are unable to

conceive--be predicable of some being. The sole question for us is,

Of what being? And the whole of our previous argumentation has shut

us up to one answer. It must be, Of Him who has been proved to be the

First Cause of all things--the Source of all the power, wisdom, and

goodness displayed in the universe. It cannot be the universe itself,

for that has been shown to be but an effect--to have before and behind

it a Mind, a Person. It cannot be ourselves or anything to which our

senses can reach, seeing that we and they are finite, contingent, and

imperfect. The author of the universe alone--the Father of our spirits,

and the Giver of every good and perfect gift--can be uncreated and

unconditioned, infinite and perfect.

This completes the idea of God so far as it can be reached or

formed by natural reason. And it gives consistency to the idea. The

conclusions of the _a posteriori_ arguments fail to satisfy either

mind or heart until they are connected with, and supplemented by,

this intuition of the reason--infinity. The conception of any other

than an infinite God--a God unlimited in all perfections--is a

self-contradictory conception which the intellect refuses to entertain.

The self-contradictions inherent in such a conception have been

exposed times without number, and in ways which cannot possibly be

refuted. The chief value of most of the _a priori_ arguments lies in

such demonstration; and no theologian who has thoughtfully discussed

either the immanent or the transitive attributes of God has been

able to dispense with as much of _a priori_ reasoning as necessary

to establish that a denial of the eternity, or immutability, or

omnipotence, or ubiquity, or omniscience, or any other attribute

implied in the infinity of the Divine Being, logically leads to

absurdity. If the infinity or independence, for example, of the First

Cause be questioned, whoever would maintain it must return some

such answer as that which Mr Spencer, although not assenting to it,

puts in these words: "If we go a step further, and ask what is the

nature of this First Cause, we are driven by an inexorable logic to

certain further conclusions. Is the First Cause finite or infinite?

If we say finite, we involve ourselves in a dilemma. To think of the

First Cause as finite is to think of it as limited. To think of it

as limited necessarily implies a conception of something beyond its

limits: it is absolutely impossible to conceive a thing as bounded

without conceiving a region surrounding its boundaries. What now

must we say of this region? If the First Cause is limited, and there

consequently lies something outside of it, this something must have

no First Cause--must be uncaused. But if we admit that there can be

something uncaused, there is no reason to assume a cause for anything.

If beyond that finite region over which the First Cause extends there

lies a region which we are compelled to regard as infinite, over which

it does not extend--if we admit that there is an infinite uncaused

surrounding the finite caused--we tacitly abandon the hypothesis of

causation altogether. Thus it is impossible to consider the First Cause

as finite. And if it cannot be finite it must be infinite. Another

inference concerning the First Cause is equally unavoidable. It must

be independent. If it is dependent, it cannot be the First Cause; for

that must be the First Cause on which it depends. It is not enough to

say that it is partially independent; since this implies some necessity

which determines its partial dependence, and this necessity, be it what

it may, must be a higher cause, or the true First Cause, which is a

contradiction. But to think of the First Cause as totally independent,

is to think of it as that which exists in the absence of all other

existence; seeing that if the presence of any other existence is

necessary, it must be partially dependent on that other existence, and

so cannot be the First Cause."

It is impossible, I think, to show that we are justified in ascribing

to God the attributes most essential to His nature without having

recourse to a very considerable extent to reasoning of an _a priori_

kind similar to that of which we have a specimen in the passage just

quoted. Such reasoning may be perfectly legitimate and conclusive. Mr

Spencer, I have said, does not accept as valid the arguments cited. But

he admits that from their inferences "there appears to be no escape,"

characterises their logic as "inexorable," and makes not the slightest

attempt directly to refute them. On what grounds, then, does he

withhold his assent from them?

One reason is, that the very conclusions which such arguments yield,

lead, he thinks, by a logic as inexorable, to self-contradictions as

great as those found to be involved in the denial of the infinity,

independence, &c., of God. Reasoning from which there appears to be no

escape, and in which no logical fallacy can be detected, yields the

conclusion that there is an infinite and absolute First Cause; but

reasoning as faultless yields also the conclusion that an infinite and

absolute First Cause is a self-contradiction--that there is no infinite

and absolute First Cause. In other words, an inexorable logic proves

both that there is an infinite and absolute First Cause, and that there

is none. Therefore it proves nothing at all except the worthlessness of

logic when applied to such an idea as that of a First Cause.

Most persons will probably be of opinion that a view like this is its

own sufficient refutation; that the reasoning which tries to prove

that reasoning may be necessarily and essentially self-contradictory

is self-condemned. And they will be quite right in their opinion. If

for any proposition the proof and counter-proof be equally cogent--if

for contradictories there may be perfect demonstrations--it is not God

only, but everything, that we shall have to cease to believe in. Such

a _reductio ad absurdum_ of a proposition would be also a _reductio ad

absurdum_ of the reason itself, leaving no inference, no intuition, no

perception, to be rationally trusted. A scepticism more absolute and

comprehensive than any human being has dared to advocate, would be the

only legitimate result. Our whole nature would have to be regarded as a

lie. But we need have no fear of reason thus terminating its existence

by committing suicide. If we are disposed to be afraid that the human

mind is in danger of so terrible a calamity, an examination of the

reasoning by which it has been attempted to show that the idea of an

infinite and absolute First Cause involves a variety of contradictions

ought speedily to reassure us. Few persons of ordinary reasoning

powers, if not committed to a foregone conclusion, will regard as

"inexorable logic" the argumentation by which Mr Mansel and Mr Spencer

fancy that they show that one and the same Being cannot be a cause,

infinite and absolute, or its inferences as those "from which there

appears to be no escape." On the contrary, ninety-nine men in a hundred

will deem them extremely weak, and possessed of no other plausibility

than that which they derive from an inaccurate and ambiguous use of

language. There are arguments proving that there is a First Cause, and

that the First Cause must be infinite and absolute, in which no fallacy

can be detected. But the only arguments which have yet been invented

to show that the First Cause cannot without contradiction be thought

of as infinite and absolute, are good for little else than to exercise

students of logic in the examination of fallacies. The two sets of

arguments are by no means of equal worth and weight.

They are also notably different in nature. Those which attempt to

prove the First Cause to be infinite and absolute imply no more than

that the mind may conclude that such a cause is not finite, dependent,

and imperfect. In this there is nothing arrogant. Those which attempt

to prove that the First Cause cannot be infinite and absolute are of

a much less humble character. They imply that we have a positive and

comprehensive knowledge of the First Cause; the infinite, and the

absolute; that we can define, compare, and contrast them, and thus find

out that they are incompatible and contradictory. But we may be quite

unable to do anything of the kind, and yet be fully entitled to hold

that the First Cause is not finite, dependent, or imperfect. We may

reason _to_ the infinite, if we only know what the finite is and is

not, without being justified in reasoning _from_ the infinite, as if we

knew definitely, not to say exhaustively, its nature.

The idea of an infinite First Cause--the idea of the infinite

God--contains no self-contradiction; on the contrary, it solves certain

otherwise inevitable self-contradictions of thought. It is only by

the apprehension of a Being who passeth knowledge that knowledge

can be rendered self-consistent; only by the admission that all

existence is not included within the conditions of the finite that

thought can escape self-destruction. But, of course, we may easily

put contradictions into our idea of an infinite Being, by assuming

that we know more about unoriginated existence, primary causation,

infinity, independence, &c., than we really do, and by defining or

describing them in ways for which we have no warrant. The idea of an

infinite First Cause is, it must not be forgotten, the idea of an

incomprehensible Being. No sane mind can refuse to acknowledge that

something is eternal and immense; but we cannot comprehend eternity and

immensity, and when we reason as if we comprehended them, we speedily

find ourselves involved in absurdities. We may know and believe that

God is eternal and immense, but if He be so, we undoubtedly cannot

comprehend Him. We cannot think of God otherwise than as self-existent,

yet we certainly cannot comprehend the nature of self-existence. We

can think of it negatively as unoriginated and independent existence,

and consequently as a positive, most perfect, and peculiar manner of

existence, unlike that which is characteristic of ourselves and other

finite beings; but we are ignorant wherein its peculiarities and

perfections positively consist.

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