unconditioned； which is not given as an actual existence from the mere
conception of it； although it alone can give pleteness to the
series of conditions。 And this is the natural course of every human
reason； even of the most uneducated； although the path at first
entered it does not always continue to follow。 It does not begin
from conceptions； but from mon experience； and requires a basis
in actual existence。 But this basis is insecure； unless it rests
upon the immovable rock of the absolutely necessary。 And this
foundation is itself unworthy of trust； if it leave under and above it
empty space； if it do not fill all； and leave no room for a why or a
wherefore； if it be not； in one word； infinite in its reality。
If we admit the existence of some one thing； whatever it may be；
we must also admit that there is something which exists necessarily。
For what is contingent exists only under the condition of some other
thing； which is its cause； and from this we must go on to conclude the
existence of a cause which is not contingent； and which consequently
exists necessarily and unconditionally。 Such is the argument by
which reason justifies its advances towards a primal being。
Now reason looks round for the conception of a being that may be
admitted； without inconsistency； to be worthy of the attribute of
absolute necessity； not for the purpose of inferring a priori； from
the conception of such a being； its objective existence （for if reason
allowed itself to take this course； it would not require a basis in
given and actual existence； but merely the support of pure
conceptions）； but for the purpose of discovering； among all our
conceptions of possible things； that conception which possesses no
element inconsistent with the idea of absolute necessity。 For that
there must be some absolutely necessary existence； it regards as a
truth already established。 Now； if it can remove every existence
incapable of supporting the attribute of absolute necessity； excepting
one… this must be the absolutely necessary being； whether its
necessity is prehensible by us； that is； deducible from the
conception of it alone； or not。
Now that； the conception of which contains a therefore to every
wherefore； which is not defective in any respect whatever； which is
all…sufficient as a condition； seems to be the being of which we can
justly predicate absolute necessity… for this reason； that； possessing
the conditions of all that is possible； it does not and cannot
itself require any condition。 And thus it satisfies； in one respect at
least； the requirements of the conception of absolute necessity。 In
this view； it is superior to all other conceptions； which； as
deficient and inplete； do not possess the characteristic of
independence of all higher conditions。 It is true that we cannot infer
from this that what does not contain in itself the supreme and
plete condition… the condition of all other things… must possess
only a conditioned existence； but as little can we assert the
contrary； for this supposed being does not possess the only
characteristic which can enable reason to cognize by means of an a
priori conception the unconditioned and necessary nature of its
existence。
The conception of an ens realissimum is that which best agrees
with the conception of an unconditioned and necessary being。 The
former conception does not satisfy all the requirements of the latter；
but we have no choice； we are obliged to adhere to it； for we find
that we cannot do without the existence of a necessary being； and even
although we admit it； we find it out of our power to discover in the
whole sphere of possibility any being that can advance wellgrounded
claims to such a distinction。
The following is； therefore； the natural course of human reason。
It begins by persuading itself of the existence of some necessary
being。 In this being it recognizes the characteristics of
unconditioned existence。 It then seeks the conception of that which is
independent of all conditions； and finds it in that which is itself
the sufficient condition of all other things… in other words； in
that which contains all reality。 But the unlimited all is an
absolute unity； and is conceived by the mind as a being one and
supreme； and thus reason concludes that the Supreme Being； as the
primal basis of all things； possesses an existence which is absolutely
necessary。
This conception must be regarded as in some degree satisfactory；
if we admit the existence of a necessary being； and consider that
there exists a necessity for a definite and final answer to these
questions。 In such a case； we cannot make a better choice； or rather
we have no choice at all； but feel ourselves obliged to declare in
favour of the absolute unity of plete reality； as the highest
source of the possibility of things。 But if there exists no motive for
ing to a definite conclusion； and we may leave the question
unanswered till we have fully weighed both sides… in other words； when
we are merely called upon to decide how much we happen to know about
the question； and how much we merely flatter ourselves that we know…
the above conclusion does not appear to be so great advantage； but； on
the contrary； seems defective in the grounds upon which it is
supported。
For； admitting the truth of all that has been said； that； namely；
the inference from a given existence （my own； for example） to the
existence of an unconditioned and necessary being is valid and
unassailable； that； in the second place； we must consider a being
which contains all reality； and consequently all the conditions of
other things； to be absolutely unconditioned； and admitting too；
that we have thus discovered the conception of a thing to which may be
attributed； without inconsistency； absolute necessity… it does not
follow from all this that the conception of a limited being； in
which the supreme reality does not reside； is therefore inpatible
with the idea of absolute necessity。 For； although I do not discover
the element of the unconditioned in the conception of such a being… an
element which is manifestly existent in the sum…total of all
conditions… I am not entitled to conclude that its existence is
therefore conditioned； just as I am not entitled to affirm； in a
hypothetical syllogism； that where a certain condition does not
exist （in the present； pleteness； as far as pure conceptions are
concerned）； the conditioned does not exist either。 On the contrary； we
are free to consider all limited beings as likewise unconditionally
necessary； although we are unable to infer this from the general
conception which we have of them。 Thus conducted； this argument is
incapable of giving us the least notion of the properties of a
necessary being； and must be in every respect without result。
This argument continues； however； to possess a weight and an
authority； which； in spite of its objective insufficiency； it has
never been divested of。 For； granting that certain responsibilities
lie upon us； which； as based on the ideas of reason； deserve to be
respected and submitted to； although they are incapable of a real or
practical application to our nature； or； in other words； would be
responsibilities without motives； except upon the supposition of a
Supreme Being to give effect and influence to the practical laws： in
such a case we should be bound to obey our conceptions； which；
although objectively insufficient； do； according to the standard of
reason； preponderate over and are superior to any claims that may be
advanced from any other quarter。 The equilibrium of doubt would in
this case be destroyed by a practical addition； indeed； Reason would
be pelled to condemn herself； if she refused to ply with the
demands of the judgement； no superior to which we know… however
defective her understanding of the grounds of these demands might be。
This argument； although in fact transcendental； inasmuch as it rests
upon the intrinsic insufficiency of the contingent； is so simple and
natural； that the monest understanding can appreciate its value。 We
see things around us change； arise； and pass away； they； or their
condition； must therefore have a cause。 The same demand must again
be made of the cause itself… as a datum of experience。 Now it is
natural that we should place the highest causality just where we place
supreme causality； in that being； which contains the conditions of all
possible effects； and the conception of which is so simple as that
of an all…embracing reality。 This highest cause； then； we regard as
absolutely necessary； because we find it absolutely necessary to
rise to it； and do not discover any reason for proceeding beyond it。
Thus； among all nations； through the darkest polytheism glimmer some
faint sparks of monotheism； to which these idolaters have been led；
not from reflection and profound thought； but by the study and natural
progress of the mon understanding。
There are only three modes of proving the existence of a Deity； on
the grounds of speculative reason。
All the paths conducting to this end begin either from determinate
experience and the peculiar constitution of the world of sense； and
rise； according to the law