Author: Wayne F. Buck
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KANT'S JUSTIFICATION OF PRIVATE PROPERTY
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www.waynebuck.com
Citation
Buck, Wayne F. "Kant's Justification of Private Property." In
New Essays on Kant. Ed. den Ouden, 227-244.
Source
Ouden, Bernard den. Editor. Moen, Marcia. Associate editor.
New Essays on Kant. Bern and New York: Peter Lang, 1987.
The purpose of this paper is to elucidate Kant's justification of private
property as it appears in the Metaphysical Elements of Justice.11 will not
attempt to uncover the philosophical antecedents of Kant's justification, to correlate it with contemporary political or social influences, or
to evaluate the argument as a whole. I simply want to reconstruct the
argument of the Metaphysical Elements of Justice as clearly and
sympathetically as possible.
In its entirety, Kant's is a theory not simply of property (Eigentum),
but of what Kant calls das Meine and das Deine, of what is mine and
what is yours. There are, Kant says, three kinds of things that can be
mine or yours: (i) external corporeal objects, (2) a particular act of
some person (e.g., the promised return of a loan), and (3) the status
(Zustand) of another (e.g., the services of an employee or servant). 2
Only the first is, properly speaking, property, for only physical objects can be disposed of—manipulated, altered, destroyed or given
up—at will. An act or the status of another may belong to me but not
as my property, for there is an obligation between us in virtue of our
both being persons, an obligation which does not exist between a
person and a thing (PL, 96 [3 81-3 82]). But because I am here interested
only in Kant's theory of property, I will take "das Meine" and "das
Deine" to mean simply "property."
While Kant's argument for private property is disjointed and repetitious, it can be analyzed into two logical parts. They are:
I. Proof that everyone has the right to own property (contained
in§§.i-5, yofMEJ).
II. Deduction of the concept of "ownership."
A. That ownership is possible (§6).
B. How ownership is possible (§§6, 10-14, I 6).
2. Proof that Everyone Has the Right to Property
The a priori law which serves as the core of Kant's entire theory of
property is the "Juridical Postulate of Practical Reason." This law
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states that everyone has the innate right to acquire and possess things
as private property.
We have an inherent right to acquire anything for our use insofar
as the right is in accordance with the condition of the external
synthetic unity of the will.3
Note that the Postulate implies that any external object can be someone's property.
The Critique of Practical Reason presents us with three other practical
Postulates: immortality, freedom as spontaneity, and the existence of
God. 4 These Postulates cannot extend our theoretical knowledge, but
are necessary presuppositions of the moral law, a law which is a priori
and unconditionally valid. 5
Kant calls the a priori law which ascribes to everyone the inherent
right to own property a Juridical Postulate of practical reason. It is a
necessary presupposition, not of the moral law directly (i.e. of the
categorical imperative), but of the corresponding fundamental juridical law—the "Universal Principle ofjustice." This principle says:
Every action is just [Rccht] that in itself or in its maxim is such
that the freedom of the will[Wi\\kucr] of each can coexist
together with the freedom of everyone in accordance with a
universal law (MEJ, 35 [337]).
Kant argues that this principle entails that every rational being who
exists in space with others has the innate right to private property—
that is, that it entails the Juridical Postulate. Let us first consider Kant's
argument for the Universal Principle ofjustice, and then his derivation of the Postulate.
Human beings, according to Kant, are both negatively and positively free. They are free from determination by the phenomenal
realm. But they are also free to limit their actions to those whose
maxims are universalizable. It is just the capacity to act on universalizable maxims—those acceptable to any and every rational being—
wherein human dignity and moral worth lies. Therefore, human
beings have a right to act on the maxims they adopt for themselves.
They have the right to determine their own ends and pursue those ends
as they think best. Because human beings exist together in space,
however, they can be causally affected by others through, for example, physical force, intimidation, or indoctrination. To be able, in
practice, as a particular human being living with others, to pursue
one's own ends in one's own way is to be externally free.6 The
Universal Principle of Justice follows from this right to external
freedom, for the principle simply expresses the latter in a Kantian
formula (see again the quotation immediately above).
Having established the Universal Principle ofjustice (the right to
external freedom), Kant will now argue that the right to own property
is a necessary condition of the right to pursue one's own ends. His
argument is simple.
(1) Having the right to pursue ends requires having the
right to use things as means to those ends.
(2) But having the right to use a thing is just what it means
to own it.
(3) Therefore everyone has an a priori right to own
property.
(1) Because human beings have the right to pursue their ends (i.e.
they have the right to external freedom) they have a right to act in
those ways necessary for achieving any ends at all. When we act to
attain some end, in many cases our action involves manipulating or
transforming some material object. When I eat an apple, I use the
object for sustenance. When I paint, I use a brush and oils to transform
a piece of canvas. Manipulation of objects is thus one of the means
necessary to achieving ends in general. Hence the right to use external
things is a necessary condition of the right to external freedom. As
Kant puts it, if reason were to forbid the use of physical objects,
external freedom would come into contradiction with itself, or "freedom would be robbing itself of the use of its Willkur" (MEJ, 52 [354]).
Simply put, external freedom would in effect be forbidden by reason
and morally impossible.
(2) So far Kant has established the inherent right to use external
objects. But this is not yet to establish the Juridical Postulate, which
claims that individuals have the inherent right to own things. Kant
makes this second step from the right to use things to owning them by
means of an analysis of the concept of "possession."
The 'subjective' condition of the possibility of actually manipulat-
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ing a thing is physical possession. I am not able to use an axe unless I
have it in hand, and I am not able to build a cabin unless I am standing
on the spot where it is to be. These kinds of possession Kant usually
calls "empirischer Besitz" and "Inhabung." I will call them "custody."
Possession in this sense, then, is the subjective condition of the possibility ot actually using a thing.
"Possession," however, cannot just mean custody. Suppose that
my right to the use of a thing lasted only as long as no one prevented
me from using it as I desired. Thus if someone wrests the thing from
my control to use as she pleases, my right to use it would end. But
losing the right to an object merely because another grabbed it from
me is precisely the situation in which I did not have a right to use it in
the first place. Therefore, my having a right to the use of a thing
presupposes that I can justifiably complain if anyone interferes with
my using it as I please, and that I am justified in preventing anyone
who tries to do so. If I have rights to something there must be some
circumstances in which I retain those rights even though I have lost
custody of the object (MEJ, 54 [356]). Custody is neither necessary nor
sufficient for possession in this sense. So "possession" must have a
second meaning, distinct from custody, if having rights to things is to
be possible. This sort of possession must be a relation between an
individual and a thing that obtains independently of their spatial
relations. Since "possession" in this sense cannot denote a sensible
relation between persons and things, Kant calls it "intelligiblerBesitz."
When there is such a relation between me and some object, I have
"authority" (Gewalt) over the object regardless of whether I have
custody (MEJ, 61-64 [362-365]). Let us call this intelligible or
'noumenal' relation "ownership."
(3) Ownership, therefore, is a necessary condition for having rights
to the use of a thing at all.
Kant has established the inherent right of everyone to own things,
where "own" means simply "have rights to the use of." On several
occasions, however, Kant seems to say that a thing is my property
only if I have the exclusive right to use it and can justifiably use force
(either directly or through some instituted enforcement mechanism)
to prevent another from using it in any way unauthorized by me.
Kant, for example, says:
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A thing is externally mine if it is such that any prevention of my
use of it would constitute an injury [Laesionj to me even if it is
not in my possesion (that is, lam not the custodian /Inhaber/ oj
the object (MEJ, 55-56 [357]; my emphasis).
If Kant means the Juridical Postulate to ascribe an inherent right to
exclusive private property, then a further argument is needed. He
might argue that one cannot have any rights to the use of a thing unless
one has exclusive rights to it. But such a claim is clearly false, and,
moreover, Kant himself implicitly concedes this, for he accepts the
possibility of common property (see, e.g., PL, 81 [368]). Kant in fact
has not shown that private property is a necessary condition for
external freedom.
Nevertheless, Kant's'argument has given us two important insights
into property, (i) He has shown that useful physical objects play a
crucial role in freedom, and that freedom is in large part actual only in
one's self-determined manipulation and transformation of physicial
objects. Kant has seen that the right to use objects is grounded in and
must take its character from the inherent right to freedom. (2) Kant's
argument has also revealed that central to ownership is the holding of
proprietory rights over an object. That is, when I own something, that
essentially means that I hold a right to have that object available to me,
and a right (which may or may not be exclusive) to make use of that
object.
2. Deduction of the Concept of "Ownership"
Kant states the problem the deduction is meant to solve in accordance with the formula laid down in the Critique of Pure Reason. The
question of how the concept of ownership is possible and empirically
valid is construed as a question about how a certain synthetic a priori
judgment is possible. This is an important move, and not merely an
artifact of Kant's "will to a system." The expression of the concept of
ownership as a synthetic a priori judgment reveals why this concept is
problematic and in need of a deduction.
In regard to those objects I have custody of, the following proposition is, Kant says, analytic:
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(C) Another's use of it against my will diminishes my
freedom (MEJ, 57 [359]).67
If someone prevents me from using some object that I have custody of,
I cannot then act as I please, whereas previously I could have. Without
an axe one cannot build and without a brush one cannot paint. The
proposition is analytic: it follows simply from the concepts of external
freedom and custody.
But a very similar proposition regarding an object I do not have
custody of is synthetic:
(P) Another's use of it against my will has the capacity to
diminish my freedom.8
This proposition is synthetic—and indeed, even paradoxical. If any
object is beyond my reach, and hence at a distance, how is it possible
for another's use of it to act on me so as to diminish my ability to do as I
please? True, he might damage the object, making it unusable, or I
might feel anxious that his custody will prevent free access to it. But
Kant surely wants to say that another's unauthorized use of the objects
I won by that very fact diminishes my freedom. So even if a thief takes
the settler's axe without his knowing (to prevent mental anguish),
does not damage it in the least, and secretly returns it (so that the
settler's free use of it is not hindered in any way)—still, Kant wants to
claim, the settler's freedom would be diminished. How can this be,
since ex hypothesi the theft has made no 'practical' difference?
To show both that and how this proposition regarding objects not
in one's custody is a priori true is to provide a deduction of the concept
of "ownership" (of'bloss-rechtlicherBesitz"). For owning something is
just to be so related to it that another's unauthorized use of it constitutes an injury—in Kant's medical/juridical terminology, a Laesion.
That is, his use violates one's only inherent right, the right to freedom
(see again MEJ, 51 [353] and 55 [357]). To show that another's unauthorized use of a thing has the potential to diminish my freedom is
precisely to show that that use has the potential to violate my rights
and hence to show that ownership is possible.
2.1 That Ownership is Possible
Now the (very easy) deduction is performed. The truth of the
synthetic a priori proposition regarding objects not in one's custody is,
Kant says, a necessary condition of the truth of the Juridical Postulate
of practical reason. Even though its truth cannot be established "by
itself," this synthetic a priori proposition must be counted as true. In
sum: It is a necessary condition of my being externally free that it be
possible for my freedom to be diminished by another's use of an object
I may not be in a position to use immediately. This is the import of the
Juridical Postulate. Hence it is possible for my freedom to be diminished by the unauthorized use of an object of which I do not have
custody.
The possibility of nonphysical possession cannot in any way be
proved by itself, nor can it be immediately intuited as true...
Instead, its possiblity follows directly from the aforementioned
postulate, for, if it is necessary to act according to this basic
principle of right, then the intelligible condition (of a mere de
jure possession) must also be possible (MEJ,60 [361]).
Kant demonstrated that my having rights to the use of a thing entails
that wrongful seizure from my custody is possible, and hence that if I
do have rights to a thing, that I can quite possibly have those rights
over things not in my custody. He has established, then, a weak
version of the Juridical Postulate. This in turn entails the possiblity of
someone's wronging me—i.e., violating my rights—by his use of an
object not in my custody. And if "diminishing one's freedom" means
"violating one's rights," (P) does indeed follow.
2.2 How Ownership is Possible
Kant has just established that it is possible to have rights over a thing
not in one's custody, and to be so related to a thing that another's
unauthorized use of it diminishes one's freedom. But Kant has not yet
explained how this is possible. He has not yet shown how I can be
justified in forcibly preventing another from using, even innocuously,
some object of which I do not have custody.
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There is, Kant says, only one inherent right—the right to external
freedom. Therefore, a right to the use of a particular object must be an
acquired right—"Nothing external is originally [ursprunglich] mine"
(PL, 81 [368]). Such a right comes into existence by a "juridical act,"
an act which confers rights one did not have previously. For anything I
own, there must have been a time when I did not own it and therefore
an event or set of events that subsequently brought it under my
rightful authority. It follows, on pain of infinite regress (which regress
is objectionable, since human beings have not existed from the beginning of time), that it is possible to be the first to acquire rights to a
thing. That is, it must be possible to rightfully acquire things other
than through the gift of, or an exchange with, another person. Kant
calls the process by which a previously unowned thing becomes
someone's private property "original acquisition" (ursprungliche Erwerbung) (PL, 81 [368]).
If Kant can explain how original acquisition is possible, he will have
explained how ownership is posssible. That is, the concept of "ownership" will be comprehensible if we can understand how something
previously unowned can be reserved for one person to the exclusion of
others. How is this possible? How can reserving an unowned thing for
one person's use not diminish the freedom of others? Kant divides the
process of my original acquisition of something into three steps or
"moments." The first is my apprehension (Apprehension) or seizure
(Bemachtigung) of the thing. It is the Willkur's act of taking custody of
the object. The second is a declaration (Bezeichnung) that the object
belongs to me. And the third is an act of appropriation or dedication
(Zueignung) by which the object in fact becomes my property.
The problem with original acquisition can be divided in two. The
first difficulty has to do with seizing the object (taking it into custody),
and'the second with the dedication (making it mine). It is clear that
seizure is moraljy and juridically possible, just as it is clear that ownership is possible, for its being so is a necesary condition of the Juridical
Postulate. Yet how can rightful seizure (and hence ownership) be
possible? If I have no right to a thing (because originally no one has)
how can I rightfully take custody of and use it, thereby erecting
obstacles to its use by anyone else?
The second difficulty concerns dedication, the act whereby an unowned object becomes mine. Who performs this act which grants
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me an original title to something? It cannot be the act of some other
individual, for he could give me rights to a thing only if he owns it, and
ex hypothesi no one yet does. Neither can the juridical act giving me
title be the act of several together—e.g., a contractual agreement
between myself and others to reserve the thing for my private use. For
even if we suppose that a few others agree not to use some object and
not to prevent my use of it, our agreement cannot bind any one else
(not, for example, future persons). The juridical act through which I
acquire rights to a previously unowned thing can only be my act—"I
acquire a thing when I act so that it becomes mine" (PL, 81 [368]).
But how can the declaration that a thing is my private property, a
declaration that / make, reserve something for myself, impose an
obligation on others, and thereby rightfully limit their freedom? If
something previously" unowned becomes my private property
everyone else would be obligated to resepct my wishes regarding that
object, although previously they could do with it as they pleased.
Declaration is the contingent act of a particular individual, and yet it
establishes "universally valid legislation" (MEJ, 62 [363]).,How is this
possible?
Let us take the second difficulty first. Kant's account of how declaring something to be mine can impose obligations on others is as
follows:
Because of the principle of autonomy, the only restrictions binding
on a rational being are those she chooses to accept. In order for original
acquisition to be possible, it must be the case that (in some sense) every
rational being has committed herself to accepting another's claim to a
previously unowned object as establishing the other's right to that
object, and as obligating her to refrain from using it. Therefore, since
we must believe that original acquisition is possible, we must also
believe that everyone has agreed to respect the first claim to possession
as a rightful claim to ownership (PL, 89-90 [374]) .In brief, my claim to
an unowned object can impose an obligation on everyone else because
all are required to believe that they have already agreed to be bound by
such claims.
We can now consider the first difficulty with original acquisition.
How can seizure be rightful? How can I rightfully seize something to
which I have no right? Kant invokes the Idea of the original community of the land and argues that it explains this possibility. This argu-
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ment completes the deduction of ownership.
Kant distinguishes the original community (urspruengliche Gemeinschaft] from a hypothetical primitive community (uranfaengliche
Gemeinschaft). The latter results when individuals come together and
contract with each other to give up some of the private rights they had
previously acquired. They agree, among other things, to give up some
of their private property. They institute for the first time relations of
law and justice between themselves. Because such a primitive community is the result of the acts of individuals, it can only come into
being at a particular time and hence is a product of history.
The original community of rational beings is quite different. The
common possession which existed in the primitive community necessarily exists in the original community. But this common possession is
not the result of individual acts. It is "urspruenglich"; in it, rational
beings find themselves holding everything in common even before
they act to establish relations of law and right. In the original community of persons, no private property has yet existed. Everyone is
still free to use whatever she pleases.
In effect, the concept of an original community expresses a way of
being together characteristic of human beings simply in virtue of their
existing together as purposive, inherently free agents. The relations
that exist between rational beings merely in virtue of existing alongside each other in a spatial Umwelt filled with corporeal things constitute the original community. It is therefore not the result of history but
exists only "in principle": the concept of such a community is an Idea.
Having characterized the Idea of the original community, we can
now examine Kant's argument that it explains how seizure, and thus
ownership, is possible.
Kant's first step is to move the question from one about seizure of
things to one about seizure of land. There arc two kinds of physical
things: those which can be destroyed and dispersed, and those which
are immovable and which can only be altered. The first are movables
(Beweglichen) and the second is the ground or land (Boden). The relation between the land and movables is analogous to that between
substance and accident, and thus for practical (i.e. .moral-juridical)
purposes, movables cannot be separated from the land. Consequently,
one cannot originally acquire a movable unless one first acquires the
land in which it inheres. The first original acquisition can only be an
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acquisition of some piece of land. So if Kant can show how original
seizure of the land is possible, he will have shown how original
acquisition is possible.
The inherent right to external freedom entails that human beings
have a right to use things in pursuit of their ends. It follows that if
anyone is in a place she has not chosen to be, she has a right to be there
and use the things around her (unless those things arc owned by
another). Thus, anyone thrown into the wilderness has the right to use
the land and the things she finds there. She is necessarily in rightful
custody and hence rightful possession of the land she occupies.
Is this rightful ownership an exclusive right to occupy the land she is
on? Perhaps not, for if someone else has also been thrown into the
same wilderness with her, he also would have a right to occupy the
land and use the things on it. The two would then hold rights to them
in common merely in virtue of being thrown into the same place. It
seems, though, that our two unfortunates need not wind up in the
same place, for they could disperse easily enough and live completely
apart. Only if they are thrown into the same place and constrained to remain
there would the things they have rights to be held in common.
In order for seizure to be morally possible, everyone must have a
right to occupy any unowned piece of land. Only if everyone has this
right "from the beginning" (i.e.,in principle), does the possibility of
original acquisition and ownership, and the truth of the Juridical
Postulate, follow. Therefore, everyone must have a right to occupy
any unowned land. As we have just seen, everyone has this right only
if they have all been thrown into the same place. The argument of
§2.1 was that we must believe that ownership—and hence seizure—is
legitimate (i.e. morally permissible). Kant has now argued that the
condition for seizure's legitimacy is that we have all been thrown into
the same place. It follows that we must believe we have all been
thrown into and live in the same place.
Now, those who live on a surface of infinite extension cannot be
said to necessarily live all in the same place. According to Kant, it
follows as an a priori truth—a postulate—of pure practical reason that
the Earth is not an infinite plain, but is instead a globe. Living on the
surface of a sphere is thus a necessary condition of the Juridical Postulate and of external freedom. In virtue of inhabiting a globe, a body
whose topology necessitates that every location is in the same place
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(just as every location in a room is in the same place), every human
being has an original right to every piece of land and thus is in an
original community of land with everyone else. The Idea of an original
community is a necessary condition of the Juridical Postulate and
explains the latter's possiblity by reference to a geographical fact.
Hence that 'fact' is a priori. The Juridical Postulate is grounded on the
idea of the original community of persons and on what I will call a
"transcendental geography."
All human beings are originally (i.e^before all juridical acts of
the will) in rightful possession of the land. That is, they have a
right to be where ever nature or chance (without their will) has
placed them. This possession is different from the willful and
thus acquired, continuing possession characteristic of residence.
It is a common possession on account of the unity of all places on
the Earth as a globe. If the Earth were an infinite plain, human
beings may not have been in community with each other, and
thus this community would not have been a necessary result of
their existence on Earth. The possession of all who live on the
Earth precedes all their juridical acts, being constituted by nature
itself, and is an original common possession fcommunio possessionis originariaj. This concept of an original common
possession is not empirical and not dependent on temporal conditions, as is the hypothetical and unproven primitive common
possession (communio primaevaj. It is instead a practical
concept of reason that contains the only principle according to
which human beings can use the land in conformity with the laws
of right (PL, 88(3^73]).
Kant here makes the remarkable claim that pure practical reason
presupposes, not only that God exists and that we are free and immortal, but also that we live on the surface of a globe. What is remarkable
here is that the particular shape the Earth has seems to be contingent—
something to be determined by theoretical reason through experience.
Kant's laborious attempts to respect and preserve both science and
morality by assigning them to distinct spheres is now seriously
jeopardized.
The three traditional Postulates of Kant's moral theory—God, freedom and immortality—have all the appearance of theoretical claims.
That is, they are claims that certain things exist and that these things
have particular properties: a supreme being exists and the self is both
free and immortal. With these Postulates Kant implicitly recognizes
that morality cannot be wholly separated from what is the case—the
moral imperative presupposes that the universe is arranged one way
rather than another.
How then does Kant prevent science—the supreme arbiter of what
exists—from assuming authority over morality? He restricts the scope
of science and construes the existential presuppositions of morality in
such a way that these presuppositions cannot be tested by this restricted science. Although the three Postulates of Practical Reason
have the status of theoretical claims (they employ concepts "thinkable" by theoretical reason), they are not decidable by theoretical
reason (the "objective reality" of their concepts cannot be determined
by theoretical reason). 9 We have practical (i.e., moral) reasons for
believing that God exists, that we are free and immortal, and so for
practical purposes we must uphold the Postulates. We cannot, however, use these Postulates for theoretical purposes (nor are they
needed).
This solution to the antagonism between morality and science is, of
course, subject to a variety of difficulties. For one thing, the three
traditional postulates do not, it seems, all have the same character.
Morality presupposes all of them in the sense that as moral agents we
are required to believe that God exists, and that we are free, immortal
beings. Kant, however, admitted that the actual falsity of the belief in
God and in our own immortality would not invalidate the moral law.
He claimed that the Postulate of freedom, on the other hand, is
required by morality in the sense that were the postulate false, the
moral law would not bind us. What kind of postulate is the statement
that the Earth is a globe? Does Kant believe that the validity of the
Juridical Postulate depends on the actual shape of the Earth, as the
validity of the categorical imperative depends on the freedom of the
will? Or does Kant think simply that the Juridical Postulate requires us
to believe that we live on a globe?
I would first point out that nothing peculiar to the argument for
property hangs on this question. Second, neither answer presents any
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new difficulty for Kant's ethics, and neither solves any of its problems.
Third, whichever interpretation we give to this new postulate, there
looms with it a serious threat to Kant's entire justification of property.
What I have called the transcendental geography proclaims, as a
necessary presupposition of morality, that the Earth is a globe. What
looks for all the world like a contingent fact of experience, and hence
within the purview of empirical science, is asserted as an article of
moral faith. Kant is suddenly on the horns of a perilous dilemma, a
dilemma which does not arise for the three Postulates. Whether or not
these three Postulates are true, or need to be true for morality's
validity, they are not subject to the scrutiny of science. Nothing in
experience could possibly count either for or against these Postulates.
The geographical postulate, on the other hand makes an empirical
claim, one quite susceptible to disconfirmation by experience. Hence
the dilemma that arises with the transcendental geography: Were
geographers to determine that the Earth is not in fact a globe (a logical
possibility), either morality would require us to deny the empirical
findings of science, or science would effectively undermine the foundations of morality (by forcing us to disbelieve a necessary presupposition of moralilty).
The solution to this dilemma lies in realizing that Kant has stumbled
somewhat by introducing the transcendental geography. The point
Kant wants to make is an interesting, even a profound one, but
ironically he obscures it by thinking too concretely. We can see where
Kant went wrong, and what the real issue is, by working backwards
through Kant's reasoning.
The climax of the argument is the startling claim that the Earth is
necessarily a globe. The Juridical Postulate, he claims, presupposes
that originally (I'.e.in principle), the land was held in common. This
possession is a common possession of everything, Kant says, "on
account of the unity of all places on the Earth as a globe." This is not
quite right. It is not necessary for the Earth to be aglobe in order that all
places on it be unified. The requirement that all the Earth's places be a
unity would be satisfied if the Earth were a cylinder, plate or any other
body of limited surface area.
It would seem, then, that Kant simply needs the weaker and less
remarkable claim that the Earth is necessarily finite in surface area.
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But, again, this is not quite right. Kant talks about the Earth, but what
he really means is the universe—i.e the totality of points one can travel
to or affect. This is easier for us to see, now that space travel is-a routine
event. So, the position Kant needs to maintain is that thefmitudeofthe
universe is a necessary presupposition of the Juridical Postulate. 10
Kant is now off the horns of the dilemma. He argued in the Critique
of Pure Reason that the question of whether or not the universe is
infinite presents an antinomy for theoretical reason: theoretical reason
is necessarily unable to decide this question. Correctly understood,
what Kant needs is not a transcendental geography, but a transcendental cosmology. The claims of this latter discipline, like the three
traditional Postulates, are not subject to scientific review. The way is
clear for practical reason to assert itself. It can safely claim as a presupposition of morality the fmitudc of the universe and need not fear
contradiction from science.
This is fine for salvaging Kant's argument, but I think that an
important insight of Kant's into property still remains obscured. Kant
says: "If the Earth were an infinite plain, human beings may not have
been in community with each other, and thus this community would
not have been a necessary result of their existence on Earth." It is a
necessary presupposition of the Juridical Postulate that in principle all
persons live in community with each other—i.e.,that we all live together. Kant thinks that the only way to guarantee that everyone winds
up living together is to throw them all into a limited space. Kant has in
mind, I think, being together in the way that people in a room are
together, or in the way that villagers live together in their village—he
thinks of living together as existing in proximity.
This is a mistake, however. For the purposes of Kant's justification
of property, living in community with others is better thought of as
being in a position to causally affect them. What is important for the
argument is not how far apart people are, but whether they can (in
principle) influence each other. Even if the universe were infinite,
nothing in it would be at an infinite distance from anything else.
Persons scattered throughout an infinite universe would still be able to
causally affect each other, and in that sense would still be in the
universe together. We are all of us—human beings and whatever
extraterrestrials there may be—in this together, and we thereby necessarily form a single community.
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Kant, in effect, is giving a moral interpretation to a certain necessary
feature of space and consequently of our existence in space. He argued
in the Transcendental Aesthetic that "we can represent to ourselves
only one space; and if we speak of diverse spaces, we mean thereby
only parts of one and the same unique space" (A25, 639).n Because
every location is continuous with every other location, there are no
regions of the universe inaccessible to us. As moral agents existing in
space and time (and for that reason capable of causally affecting each
other), we are required by morality to think of ourselves as living in
essential community with every other rational being. It is the inevitable community of purposive, rational, incarnated beings that makes
it both possible and necessary for them to establish institutions regulating their use of material things.
Wayne F. Buck
Department of Philosophy
Yale University
* I would like to thank Professors Christine Korsgaard and John Ladd
for their advice and criticisms on earlier drafts of this paper. The
comments of Manfred Kleinschnieder, of Kant-Studien, were also of
great help.
1 For other discussions of Kant's theory see: Mary J. Gregor, Laws of
Freedom (Oxford, 1963), chapter IV, "The Principles of Acquired
Right," pp. 50-63; Howard Williams, "Kant's Concept of Property,"
Philosophical Quarterly 27 (1977), pp. 32-40; Susan Meld Shell, "Kant's
Theory of Property," Political Theory 6 (1978), pp. 75-89. Now, see
also Howard Williams, Kant's Political Philosophy (Oxford, 1983), pp.
77-96.
2
The Metaphysical Elements of Justice, trans, by John Ladd
(Indianapolis, 1965), pp. 54-55; "Die MetaphysikderSitten," in Werke
in Sechs Baenden, hrsg. von Wilhelm Weischedel (Wiesbaden, 1956),
Band IV: Schriften zur Ethik und Religions-philosophie, pp. 355-57. My
references to The Metaphysical Elements of Justice will take the following
form: (MEJ, 54-55 [355-578], where the page numbers in brackets
refer to the Weischedel edition. Where Ladd does not provide a
translation, I will refer, in its place, to: The Philosophy of Law, trans, by
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W. Hastie (Edinburgh, 1887), using the form (PL, 96 [381-82], where
again the page numbers in brackets refer to the Weischedel edition.
Hastie's translation is a bad one, and cannot be trusted. In quoting
from the sections Ladd leaves out (viz. §§10-35, 37-40), I have
revised most of Hastie's translations or provided my own.
3HandschriftlicherNachlass (Academy edition), vol. 23, p. 220 (my translation). The postulate is formulated as follows in the Metaphysical
Elements: "It is a duty of justice to act toward others so that external
objects (usable objects) can also become someone's (MEJ, 60 [361];
and see MEJ, 65 [366]).
4 Critique of Practical Reason, trans, by L.W. Beck (New York, 1956),
p. 1375 Critique of Practical Reason, p. 127.
6 "Human freedom as a, principle for the constitution of a community
I express in this formula: No man can compel me to be happy after his
fashion, according to his conception of the well-being of someone
else. Instead, everybody may pursue his happiness in the manner that
seems best to him, provided he does not infringe on other people's
freedom to pursue similar ends" (On the Old Saw: That may be Right in
Theory but Won't Work in Practice, trans, by E. B. Ashton [Philadelphia,
1974], p. 58). Compare the formulation in MEJ, 43-44 [345]7 Kant's actual words are: "If I am the holder of a thing (that is,
physically connected to it), then anyone who touches it without my
consent (for example, wrests an apple from my hand) affects and
diminishes that which is internally mine (my freedom)."
8 "Has the capacity to" instead of "does" diminish my freedom for the
obvious reason that there can be objects outside of my custody whose
use by another would not diminish my freedom—viz., those objects I
do not own. Kant argues that since any object can be owned by me,
every object is such that another's use of it without my consent has the
potential to diminish my freedom (a potential that is actualized just in
case I own the object). See MEJ, 56-57 [358-59]. This formulation of
the proposition needing a deduction is not Kant's, but rather my
candidate for what Kant must have meant. I have taken my clue for
formulating this proposition from Kant's formulation of the proposition regarding objects held in custody.
9 Critique of Practical Reason, pp. 137-42.
10 Jonathon Vogcl suggested this to me in conversation.
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Critique of Pure Reason, Norman Kemp Smith (trans.) (New York,
1929).
11