TWO DOZEN (OR SO) THEISTIC ARGUMENTS
Lecture Notes by Alvin Plantinga
I've been arguing that
theistic belief does not (in general) need argument either
for deontological justification, or for positive epistemic status,
(or for Foley rationality or Alstonian justification)); belief in
God is properly basic. But doesn't follow, of course that there
aren't any good arguments. Are there some? At least a couple of
dozen or so.
Swinburne: good argument one that
has premises that everyone knows. Maybe aren't any such arguments:
and if there are some, maybe none of them would be good arguments
for anyone. (Note again the possibility that a person might,
when confronted with an arg he sees to be valid for a conclusion
he deeply disbelieves from premises he know to be true, give up
(some of) those premises: in this way you can reduce someone from
knowledge to ignorance by giving him an argument he sees to be valid
from premises he knows to be true.)
These arguments are not coercive
in the sense that every person is obliged to accept their premises
on pain of irrationality. Maybe just that some or many sensible
people do accept their premises (oneself)
What are these arguments like, and
what role do they play? They are probabilistic, either with respect
to the premises, or with respect to the connection between the premises
and conclusion, or both. They can serve to bolster and confirm ('helps'
a la John Calvin); perhaps to convince.
Distinguish two considerations here:
(1) you or someone else might just find yourself with these
beliefs; so using them as premises get an effective theistic arg
for the person in question. (2) The other question has to do with
warrant, with conditional probability in epistemic sense: perhaps
in at least some of these cases if our faculties are functioning
properly and we consider the premises we are inclined to accept
them; and (under those conditions) the conclusion has considerable
epistemic probability (in the explained sense) on the premises.
add Aquinas' fifth way: this is
really an argument from proper function, I think
I. Half a Dozen (or so) ontological
(or metaphysical) arguments
(A) The Argument
from Intentionality (or Aboutness)
Consider propositions: the things
that are true or false, that are capable of being believed, and
that stand in logical relations to one another. They also have another
property: aboutness or intentionality. (not intensionality, and
not thinking of contexts in which coreferential terms are not substitutable
salva veritate) Represent reality or some part of
it as being thus and so. This crucially connected with their
being true or false. Diff from, e.g., sets, (which is the real reason
a proposition would not be a set of possible worlds, or of any other
objects.)
Many have thought it incredible
that propositions should exist apart from the activity of minds.
How could they just be there, if never thought of? (Sellars,
Rescher, Husserl, many others; probably no real Platonists besides
Plato before Frege, if indeed Plato and Frege were Platonists.)
(and Frege, that alleged arch-Platonist, referred to propositions
as gedanken.) Connected with intentionality. Representing
things as being thus and so, being about something or other--this
seems to be a property or activity of minds or perhaps
thoughts . So extremely tempting to think of propositions as
ontologically dependent upon mental or intellectual activity in
such a way that either they just are thoughts, or else at any rate
couldn't exist if not thought of. (According to the idealistic tradition
beginning with Kant, propositions are essentially judgments.)
But if we are thinking of human thinkers, then there are far to
many propositions: at least, for example, one for every real number
that is distinct from the Taj Mahal. On the other hand, if they
were divine thoughts, no problem here. So perhaps we should think
of propositions as divine thoughts. Then in our thinking we would
literally be thinking God's thoughts after him.
(Aquinas, De Veritate "Even
if there were no human intellects, there could be truths because
of their relation to the divine intellect. But if, per impossibile,
there were no intellects at all, but things continued to exist,
then there would be no such reality as truth.")
This argument will appeal to those
who think that intentionality is a characteristic of propositions,
that there are a lot of propositions, and that intentionality or
aboutness is dependent upon mind in such a way that there couldn't
be something p about something where p had never been
thought of.
(B) The argument
from collections.
Many think of sets as displaying
the following characteristics (among others): (1) no set is a member
of itself; (2) sets (unlike properties) have their extensions essentially;
hence sets are contingent beings and no set could have existed if
one of its members had not; (3) sets form an iterated structure:
at the first level, sets whose members are nonsets, at the second,
sets whose members are nonsets or first level sets, etc. Many (Cantor)
also inclined to think of sets as collections--i.e., things
whose existence depends upon a certain sort of intellectual activity--a
collecting or "thinking together" (Cantor). If sets were
collections, that would explain their having the first three features.
But of course there are far to many sets for them to be a product
of human thinking together; there are many sets such that no human
being has ever thought their members together, many that are such
that their members have not been thought together by any human being.
That requires an infinite mind--one like God's.
A variant: perhaps a way to think
together all the members of a set is to attend to a certain property
and then consider all the things that have that property: e.g.,
all the natural numbers. Then many infinite sets are sets that could
have been collected by human beings; but not nearly all--not, e.g.,
arbitrary collections of real numbers. (axiom of choice)
This argument will appeal to those
who think there are lots of sets and either that sets have the above
three properties or that sets are collections.
Charles Parsons, "What is the
Iterative Conception of Set?" in Mathematics in Philosophy
pp 268 ff.
Hao Wang From Mathematics to
Philosophy chap. 6: iterative and constructivist (i.e., the
basic idea is that sets are somehow constructed and are constructs)
conception of set.
Note that on the iterative conception,
the elements of a set are in an important sense prior to the set;
that is why on this conception no set is a member of itself, and
this disarms the Russell paradoxes in the set theoretical form,
although of course it does nothing with respect to the property
formulation of the paradoxes. (Does Chris Menzel's way of thinking
bout propositions as somehow constructed by God bear here?)
Cantor's definition of set (1895):
By a "set" we understand
any collection M into a whole of definite well-distinguished objects
of our intuition or our thought (which will be called the "elements"
of M) Gesammelte Abhandlungen mathematischen und philosophischen,
ed. Ernst Zermelo, Berlin: Springer, 1932 p. 282.
Shoenfield (Mathematical Logic)
l967 writes:
A closer examination of the (Russell)
paradox shows that it does not really contradict the intuitive notion
of a set. According to this notion, a set A is formed by gathering
together certain objects to form a single object, which is the set
A. Thus before the set A is formed, we must have available all of
the objects which are to be members of A. (238)
Wang: "The set is a single
object formed by collecting the members together." (238)
Wang: (182)
It is a basic feature of reality
that there are many things. When a multitude of given objects can
be collected together, we arrive at a set. For example, there are
two tables in this room. We are ready to view them as given both
separately and as a unity, and justify this by pointing to them
or looking at them or thinking about them either one after the other
or simultaneously. Somehow the viewing of certain objects together
suggests a loose link which ties the objects together in our intuition.
(C) The argument From (Natural)
numbers
(I once heard Tony Kenny attribute
a particularly elegant version of this argument to Bob Adams.) It
also seems plausible to think of numbers as dependent upon
or even constituted by intellectual activity; indeed, students always
seem to think of them as "ideas" or "concepts",
as dependent, somehow, upon our intellectual activity. So if there
were no minds, there would be no numbers. (According to Kroneker,
God made the natural numbers and man made the rest--not quite right
if the argument from sets is correct.) But again, there are too
many of them for them to arise as a result of human intellectual
activity. Consider, for example, the following series of functions:
2 lambda n is two to the second to the second .... to the second
n times. The second member is ##2 (n); the third 3#2(n), etc. (See
The Mathematical Gardener, the essay by Knuth.) 6**2(15), for
example would be a number many times larger than any human being
could grasp. , for example, is to the We should therefore think
of them as among God's ideas. Perhaps, as Christopher Menzel suggests
(special issue of Faith and Philosophy) they are properties of equinumerous
sets, where properties are God's concepts.
There is also a similar argument
re properties . Properties seem very similar to concepts.
(Is there really a difference between thinking of the things that
fall under the concept horse and considering the things that
have the property of being a horse?) In fact many have found it
natural to think of properties as reified concepts. But again, there
are properties, one wants to say, that have never been entertained
by any human being; and it also seems wrong to think that properties
do not exist before human beings conceive them. But then (with respect
to these considerations) it seems likely that properties are the
concepts of an unlimited mind: a divine mind.
(D)
The Argument From Counterfactuals
Consider such a counterfactual as
(1) If Neal had gone into law he
would have been in jail by now.
It is plausible to suppose that
such a counterfactual is true if and only if its consequent is true
in the nearby (i.e., sufficiently similar) possible worlds in which
its antecedent is true (Stalnaker, Lewis, Pollock, Nute). But of
course for any pair of distinct possible worlds W and W*,
there will be infinitely many respects in which they resemble each
other, and infinitely many in which they differ. Given agreement
on these respects and on the degree of difference within the respects,
there can still be disagreement about the resultant total similarity
of the two situations. What you think here--which possible worlds
you take to be similar to which others uberhaupt will depend
upon how you weight the various respects.
Illustrative interlude: Chicago
Tribune, June 15, l986:
"When it comes to the relationship
between man, gorilla and chimpanzee, Morris Goodman doesn't monkey
around.
"No matter where you look on
the genetic chain the three of us are 98.3% identical" said
Goodman, a Wayne State University professor in anatomy and cell
biology.
"Other than walking on two
feet and not being so hairy, the main different between us and a
chimp is our big brain" said the professor. . . . . the genetic
difference between humans and chimps is about 1.7 %.
"How can we be so close genetically
if we look so different? There's only a .2 % difference between
a dachshund and a Great Dane, yet both look quite different (sic),"
Goodman said.
"He explained that if you look
at the anatomies of humans and chimps, chimps get along better in
trees than people, but humans get along better on the ground. (Or
in subways, libraries and submarines.)
How similar uberhaupt you
think chimps and humans are will depend upon how you rate the various
respects in which they differ: composition of genetic material,
hairiness, brain size, walking on two legs, appreciation of Mozart,
grasp of moral distinctions, ability to play chess, ability to do
philosophy, awareness of God, etc. End of Illustrative interlude
Some philosophers as a result argue
that counterfactuals contain an irreducibly subjective element.
E.g., consider this from van Fraassen:
Consider again statement (3) about
the plant sprayed with defoliant. It is true in a given situation
exactly if the 'all else' that is kept 'fixed' is such as to rule
out the death of the plant for other reason. But who keeps what
fixed? The speaker, in his mind. .... Is there an objective right
or wrong about keeping one thing rather than another firmly in mind
when uttering the antecedent? (The Scientific Image p. 116)
(This weighting of similarities)
and therefore don't belong in serious, sober, objective science.
The basic idea is that considerations as to which respects (of difference)
are more important than which is not something that is given in
rerum natura, but depends upon our interests and aims and
plans. In nature apart from mind, there are no such differences
in importance among respects of difference.
Now suppose you agree that such
differences among respects of difference do in fact depend upon
mind, but also think (as in fact most of us certainly do) that counterfactuals
are objectively true or false: you can hold both of these if you
think there is an unlimited mind such that the weightings it makes
are then the objectively correct ones (its assignments of weights
determine the correct weights). No human mind, clearly, could occupy
this station. God's mind, however, could; what God sees as similar
is similar.
Joseph Mondola, "The Indeterminacy
of Options", APQ April l987 argues for the indeterminacy
of many counterfactuals on the grounds that I cite here, substantially.
(E) The Argument from physical constants
(Look at Barrow and Tipler
The Anthropic Cosmological Principle)
Carr and Rees ("The Anthropic
Principle and the Structure of the Physical World" (Nature,
l979)):
"The basic features of galaxies,
stars, planets and the everyday world are essentially determined
by a few microphysical constants and by the effects of gravitation.
. . . several aspects of our Universe--some which seem to be prerequisites
for the evolution of any form of life--depend rather delicately
on apparent 'coincidences' among the physical constants" (
p. 605).
If the force of gravity were even
slightly stronger, all stars would be blue giants; if even slightly
weaker, all would be red dwarfs. (Brandon Carter, "Large Number
Coincidences and the Anthropic Principle in Cosmology", in
M. S. Longair, ed, Confrontation of Cosmological Theories with
Observational Data l979 p. 72 According to Carter, under these
conditions there would probably be no life. So probably if the strength
of gravity were even slightly different, habitable planets would
not exist.
The existence of life also depends
delicately upon the rate at which the universe is expanding. S.
W. Hawking "The Anisotropy of the Universe at Large Times"
in Longair p., 285:
"...reduction of the rate of
expansion by one part in 1012 at the time when the temperature of
the Universe was 1010 K would have resulted in the Universe's starting
to recollapse when its radius was only 1/3000 of the present value
and the temperature was still 10,000 K"--much too warm for
comfort. He concludes that life is only possible because the Universe
is expanding at just the rate required to avoid recollapse".
If the strong nuclear forces were
different by about 5% life would not have been able to evolve.
The same goes for the weak interaction
force.
So if the weakness of the gravitational
force relative to the electromagnetic force, or the strength of
either the strong or weak forces were altered even slightly one
way or the other, the universe would have been largely different,
so different in fact that life could not exist. Pat Wilson, "The
Anthropic Cosmological Principle" unpublished.
Similarly for the number of neutrinos,
and for the mass of the neutrino
Before doing much of anything with
this (and for Oxford, maybe only mention it and work harder with
others) look again at: "The SAP also Rises: . . . " American
Philosophical Quarterly, Oct. l987
Davies, P. C. W., The Accidental
Universe, l982:
All this prompts the question of
why, from the infinite range of possible values that nature could
have selected for the fundamental constants, and from the infinite
variety of initial conditions that could have characterized the
primeval universe, the actual values and conditions conspire to
produce the particular range of very special features that we observe.
For clearly the universe is a very special place: exceedingly uniform
on a large scale, yet not so precisely uniform that galaxies could
not form; ...an expansion rate tuned to the energy content to unbelievable
accuracy; values for the strengths of its forces that permit nuclei
to exist, yet do not burn up all the cosmic hydrogen, and many more
apparent accidents of fortune. p. 111
And what is impressive about all
these coincidences is that they are apparently required for the
existence of life as we know it (as they say).
Some thinkers claim that none of
this ought to be thought surprising or as requiring explanation:
no matter how things had been, it would have been exceedingly improbable.
(No matter what distribution of cards is dealt, the distribution
dealt will be improbable.) This is perhaps right, but how does it
work? and how is it relevant? We are playing poker; each time I
deal I get all the aces; you get suspicious: I try to allay your
suspicions by pointing out that my getting all the aces each time
I deal is no more improbable than any other equally specific distribution
over the relevant number of deals. Would that explanation play in
Dodge City (or Tombstone)?
Others invoke the Anthropic Principle,
which is exceedingly hard to understand but seems to point out that
a necessary condition of these values of the physical constants
being observed at all (by us or other living beings) is that they
have very nearly the values they do have; we are here to observe
these constants only because they have the values they do have.
Again, this seems right, but how is it relevant? What does it explain?
It still seems puzzling that these constants should have just the
values they do. Why weren't they something quite different? This
is not explained by pointing out that we are here. (a counterexample
to Hempelian claims about explanation) Like "explaining"
the fact that God has decided to create me (instead of passing me
over in favor of someone else) by pointing out that I am in fact
here, and that if God had not thus decided, I wouldn't have been
here to raise the question.
Another approach:
Abstract:
We examine the question of whether
the present isotropic state of the universe could have resulted
from initial conditions which were "chaotic" in the sense
of being arbitrary, any anisotropy dying away as the universe expanded.
We show that the set of spatially homogeneous cosmological models
which approach isotropy at infinite times is of measure zero in
the space of all spatially homogenous models. This indicates that
the isotropy of the Robertson-Walker models is unstable to homogeneous
and anisotropic perturbations. It therefore seems that there is
only a small set of initial conditions that would give rise to universal
models which would be isotropic to within the observed limits at
the present time. One possible way out of this difficulty is to
suppose that there is an infinite number of universes with all possible
different initial conditions. Only those universes which are expanding
just fast enough to avoid recollapsing would contain galaxies, and
hence intelligent life. However, it seems that this subclass of
universes which have just the escape velocity would in general approach
isotropy. On this view, the fact that we observe the universe to
be isotropic would simply be a reflection of our own existence.
We shall now put forward an idea
which offers a possible way out of this difficulty. This idea is
based on the discovery that homogeneous cosmological models do in
general tend toward isotropy if they have exactly the same escape
velocity. Of course, such "parabolic" homogeneous models
form a set of measure zero among all homogeneous models. However,
we can justify their consideration by adopting a philosophy which
has been suggested by Dicke (1961) and Carter (1968). In this approach
one postulates that there is not one universe, but a whole infinite
ensemble of universes with all possible initial conditions. From
the existence of the unstable anisotropic model it follows that
nearly all of the universes become highly anisotropic. However,
these universes would not be expected to contain galaxies, since
condensations can grow only in universes in which the rate of expansion
is just sufficient to avoid recollapse. The existence of galaxies
would seem to be a necessary precondition for the development of
any form of intelligent life. Thus there will be life only in those
universes which tend toward isotropy at large times. The fact that
we have observed the universe to be isotropic therefore only a consequence
of our own existence. 319
Spatially homogeneous models can
be divided into three classes: those which have less than the escape
velocity (.e., those whose rate of expansion is insufficient to
prevent them from recollapsing), those which have just the escape
velocity, and those which have more than the escape velocity. Models
of the first class exist only for a finite time, and therefore do
not approach arbitrarily near to isotropy. We have shown that models
of the third class do in general tend to isotropy at arbitrarily
large times. Those models of the second class which are sufficiently
near to the Robertson-Walker models do in general tend to isotropy,
but this class is of measure zero in the space of all homogeneous
models. It therefore seems that one cannot explain the isotropy
of the universe without postulating special initial conditions..
. . .
The most attractive answer would
seems to come from the Dickie-Carter idea that there is a very large
number of universes, with all possible combinations of initial data
and values of the fundamental constants. In those universes with
less than the escape velocity small density perturbations will not
have time to develop into galaxies and stars before the universe
recollapses. In those universes with more than the escape velocity,
small density perturbations would still have more than the escape
velocity, and so would not form bound systems. It is only in those
universes which have very nearly the escape velocity that one could
expect galaxies to develop, and we have found that such universes
will in general approach isotropy. Since it would seem that the
existence of galaxies is a necessary condition for the development
of intelligent life, the answer to the question "why is the
universe isotropic?" is "because we are here". 334
C. B. Colling and S.W. Hawking,
"Why is the Universe Isotropic?" The Astrophysical
Journal, March 1, l973
Here you had better look up Alan
Guth , "Inflationary Universes: A possible solution to the
horizon and flatness problems, Physical Review D, 23, 1981 347-356,
and some other pieces mentioned by John Earman, "The SAP also
Rises: . . . " American Philosophical Quarterly, Oct.
l987
From a theistic point of view, however,
no mystery at all and an easy explanation.
(F) The Naive Teleological Argument
Swinburne:
The world is a complicated thing.
There are lots and lots of different bits of matter, existing over
endless time (or possibly beginning to exist at some finite time).
The bits of it have finite and not particularly natural sizes, shapes,
masses, etc; and they come together in finite, diverse and very
far from natural conglomerations (viz. lumps of matter on planets
and stars, and distributed throughout interstellar space). . . .
. Matter is inert and has no powers which it can choose to exercise;
it does what it has to do. yet each bit of matter behaves in exactly
the same way as similar bits of matter throughout time and space,
the way codified in natural laws. . . . . all electrons throughout
endless time and space have exactly the same powers and properties
as all other electrons (properties of attracting, repelling, interacting,
emitting radiation, etc.), all photons have the same powers and
properties as all other photons etc., etc. Matter is complex, diverse,
but regular in its behaviour. Its existence and behaviour need explaining
in just the kind of way that regular chemical combinations needed
explaining; or it needs explaining when we find all the cards of
a pack arranged in order. EG 288
Newton: Whence arises all this order
and beauty and structure?
Hume Dialogues: Cleanthes:
Consider, anatomize the eye. Survey its structure and contrivance,
and tell me, from your own feeling, if the idea of a contriver does
not immediately flow in upon you with a force like that of sensation.
The most obvious conclusion, surely, is in favour of design, and
it requires time, reflection and study to summon up those frivolous,
though abstruse objections which can support infidelity.
The idea: the beauty, order and
structure of the universe and the structure of its parts strongly
suggest that it was designed; it seems absurd to think that such
a universe should have just been there, that it wasn't designed
and created but just happened. Contemplating these things can result
in a strong impulse to believe that the universe was indeed designed--by
God.
(Hume's version may be very close
to a wholly different style of "argument": one where the
arguer tries to help the arguee achieve the sort of situation in
which the Sensus Divinitatis operates.)
(G) Tony Kenny's style of teleological
argument
(h) The ontological argument
- Another argument thrown in for good measure.
Why is there anything at all? That
is, why are there any contingent beings at all? (Isn't that
passing strange, as S says?) An answer or an explanation that appealed
to any contingent being would of course raise the same question
again. A good explanation would have to appeal to a being that could
not fail to exist, and (unlike numbers, propositions, sets, properties
and other abstract necessary beings) is capable of explaining the
existence of contingent beings (by, for example, being able to create
them). The only viable candidate for this post seems to be God,
thought of as the bulk of the theistic tradition has thought of
him: that is, as a necessary being, but also as a concrete being,
a being capable of causal activity. (Difference from S's Cosmo Arg:
on his view God a contingent being, so no answer to the question
"Why are there anything (contingent) at all?"
II. Half a dozen Epistemological
Arguments
(J) The argument from positive epistemic
status
Clearly many of our beliefs
do have positive epistemic status for us (at any rate most of us
think so, most of us accept this premise). As we have seen, positive
epistemic status is best thought of as a matter of a belief's being
produced by cognitive faculties that are functioning properly in
the sort of environment that is appropriate for them. The easiest
and most natural way to think of proper functioning, however, is
in terms of design: a machine or an organism is working properly
when it is working in the way it was designed to work by the being
that designed it. But clearly the best candidate for being the being
who has designed our cognitive faculties would be God.
This premise of this argument is
only a special case of a much broader premise: there are many natural
(nonartifactual) things in the world besides our cognitive faculties
such that they function properly or improperly: organs of our bodies
and of other organisms, for example. (Tony Kenny's design argument)
Objection: perhaps there is indeed
this initial tendency to see these things as the product of intelligent
design; but there is a powerful defeater in evolutionary theory,
which shows us a perfectly natural way in which all of these things
might have come about without design.
Reply: (1) is it in fact plausible
to think that human beings, for example, have arisen through the
sorts of mechanisms (random genetic mutation and natural selection)
in the time that according to contemporary science that has been
available? The conference of biologists and mathematicians ("Mathematical
Challenges to the NeoDarwinian Interpretation of Evolution",
ed. Paul Morehead and Martin Kaplan, Philadelphia, Wistar Institute
Press); the piece by Houston Smith. The chief problem: most of the
paths one might think of from the condition of not having eyes,
for example, to the condition of having them will not work; each
mutation along the way has to be adaptive, or appropriately connected
with something adaptive. (2) There does not appear to be any decent
naturalistic account of the origin of life, or of language.
(K) The Argument from the confluence
of proper function and reliability
We ordinarily think that when
our faculties are functioning properly in the right sort of environment,
they are reliable. Theism, with the idea that God has created us
in his image and in such a way that we can acquire truth over a
wide range of topics and subjects, provides an easy, natural explanation
of that fact. The only real competitor here is nontheistic evolutionism;
but nontheistic evolution would at best explain our faculties' being
reliable with respect to propositions which are such that having
a true belief with respect to them has survival value. That does
not obviously include moral beliefs, beliefs of the kind involved
in completeness proofs for axiomatizations of various first order
systems, and the like. (More poignantly, beliefs of the sort involved
in science, or in thinking evolution is a plausible explanation
of the flora a fauna we see.) Still further, true beliefs as
such don't have much by way of survival value; they have to
be linked with the right kind of dispositions to behavior. What
evolution requires is that our behavior have survival value,
not necessarily that our beliefs be true. (Sufficient that we be
programmed to act in adaptive ways.) But there are many ways in
which our behavior could be adaptive, even if our beliefs were for
the most part false. Our whole belief structure might (a) be a sort
of byproduct or epiphenomenon, having no real connection with truth,
and no real connection with our action. Or (b) our beliefs might
be connected in a regular way with our actions, and with our environment,
but not in such as way that the beliefs would be for the most part
true.
Can we define a notion of natural
plausibility, so that we can say with Salmon that belief in God
is just implausible, and hence needs a powerful argument from what
is plausible? This would make a good section in the book. Here could
argue that what you take to be naturally plausible depends upon
whether you are a theist or not. (It doesn't have to do only with
what seems plausible to you, or course) And here could put into
this volume some of the stuff from the other one about these questions
not being metaphysically or theologically neutral.
Patricia Churchland (JP LXXXIV Oct
87) argues that the most important thing about the human brain is
that it has evolved; hence (548) its principle function is to enable
the organism to move appropriately. "Boiled down to essentials,
a nervous system enables the organism to succeed in the four F's:
feeding fleeing, fighting and reproducing. The principle chore of
nervous systems is to get the body parts where they should be in
order that the organism may survive. . . . . . Truth, whatever that
is, definitely takes the hindmost." (Self-referential problems
loom here.) She also makes the point that we can't expect perfect
engineering from evolution; it can't go back to redesign the basics.
Note that there is an interesting
piece by Paul Horwich "Three Forms of Realism", Synthese,
51, (1982) 181-201 where he argues that the very notion of mind
independent truth implies that our claims to knowledge cannot be
rationally justified. The difficulty "concerns the adequacy
of the canons of justification implicit in scientific and ordinary
linguistic practice--what reason is there to suppose that they guide
us towards the truth? This question, given metaphysical realism,
is substantial, and, I think, impossible to answer; and it is this
gulf between truth and our ways of attempting to recognize it which
constitutes the respect in which the facts are autonomous. Thus
metaphysical realism involves to an unacceptable, indeed fatal,
degree the autonomy of fact: there is from that perspective no reason
to suppose that scientific practice provides even the slightest
clue to what is true. 185 ff.
(L) The Argument from Simplicity
According to Swinburne, simplicity
is a prime determinant of intrinsic probability. That
seems to me doubtful, mainly because there is probably no such thing
in general as intrinsic (logical) probability. Still we certainly
do favor simplicity; and we are inclined to think that simple explanations
and hypotheses are more likely to be true than complicated epicyclic
ones. So suppose you think that simplicity is a mark of truth (for
hypotheses). If theism is true, then some reason to think the more
simple has a better chance of being true than the less simple; for
God has created both us and our theoretical preferences and the
world; and it is reasonable to think that he would adapt the one
to the other. (If he himself favored anti-simplicity, then no doubt
he would have created us in such a way that we would too.) If theism
is not true, however, there would seem to be no reason to think
that the simple is more likely to be true than the complex.
(M) The Argument from induction
Hume pointed out that human
beings are inclined to accept inductive forms of reasoning and thus
to take it for granted, in a way, that the future will relevantly
resemble the past. (This may have been known even before Hume.)
As Hume also pointed out, however, it is hard to think of a good
(noncircular) reason for believing that indeed the future will be
relevantly like the past. Theism, however, provides a reason: God
has created us and our noetic capacities and has created the world;
he has also created the former in such a way as to be adapted to
the latter. It is likely, then, that he has created the world in
such a way that in fact the future will indeed resemble the past
in the relevant way). (And thus perhaps we do indeed have a priori
knowledge of contingent truth: perhaps we know a priori that
the future will resemble the past.) (Note here the piece by Aron
Edidin: "Language Learning and A Priori Knowledge), APQ
October l986 (Vol. 23/ 4); Aron argues that in any case of language
learning a priori knowledge is involved.)
This argument and the last argument
could be thought of as exploiting the fact that according to theism
God has created us in such a way as to be at home in the world (Wolterstorff.)
(N) The Putnamian Argument (the
Argument from the Rejection of Global Skepticism)
Hilary Putnam (Reason Truth
and History) and others argue that if metaphysical realism is
true (if "the world consists of a fixed totality of mind independent
objects", or if "there is one true and complete description
of the 'the way the world is'") then various intractable skeptical
problems arise. For example, on that account we do not know that
we are not brains in a vat. But clearly we do know that we are not
brains in a vat; hence metaphysical realism is not true. But of
course the argument overlooks the theistic claim that we could perfectly
well know that we are not brains in a vat even if metaphysical realism
is true: we can know that God would not deceive us in such a disgustingly
wholesale manner. So you might be inclined to accept (1) the Putnamian
proposition that we do know that we are not brains in a vat (2)
the anti-Putnamian claim that metaphysical realism is true and antirealism
a mere Kantian galimatias, and (3) the quasi-Putnamian proposition
that if metaphysical realism is true and there is no such person
God who has created us and our world, adapting the former to the
latter, then we would not know that we are not brains in a vat;
if so, then you have a theistic argument.
Variant: Putnam and others argue
that if we think that there is no conceptual link between justification
(conceived internalistically) and truth, then we should have to
take global skepticism really seriously. If there is no connection
between these two, then we have no reason to think that even our
best theories are any more likely to be true than the worst theories
we can think of. We do, however, know that our best theories are
more likely to be true than our worst ones; hence. . . . You may
be inclined to accept (1) the Putnamian thesis that it is false
that we should take global skepticism with real seriousness, (2)
the anti-Putnamian thesis that there is no conceptual link
between justification and truth (at any rate if theism is false),
and (3) the quasi-Putnamian thesis that if we think is no link between
the two, then we should take global skepticism really seriously.
Then you may conclude that there must be a link between the two,
and you may see the link in the theistic idea that God has created
us and the world in such a way that we can reflect something of
his epistemic powers by virtue of being able to achieve knowledge,
which we typically achieve when we hold justified beliefs.
Here in this neighborhood and in
connection with anti-realist considerations of the Putnamian type,
there is a splendid piece by Shelley Stillwell in the '89 Synthese
entitled something like "Plantinga's Anti-realism" which
nicely analyzes the situation and seems to contain the materials
for a theistic argument.
(O) The Argument from Reference
Return to Putnam's brain in
a vat. P argues that our thought has a certain external character:
what we can think depends partly on what the world is like. Thus
if there were no trees, we could not think the thought there
are no trees ; the word 'tree' would not mean what it does mean
if in fact there were no trees (and the same for other natural kind
terms--water, air, horse, bug, fire, lemon, human being, and the
like, and perhaps also artifactual kind terms--house, chair, airplane,
computer, barometer, vat, and the like.) But then, he says, we can
discount brain in vat skepticism: it can't be right, because if
we were brains in a vat, we would not have the sort of epistemic
contact with vats that would permit our term 'vat' to mean what
in fact it does. But then we could not so much as think the thought:
we are brains in a vat. So if we were, we could not so much as think
the thought that we were. But clearly we can think that thought
(and if we couldn't we couldn't formulate brain in vat skepticism;
so such skepticism must be mistaken.
But a different and more profound
skepticism lurks in the neighborhood: we think we can think
certain thoughts, where we can give general descriptions of the
thoughts in question. Consider, for example, our thought that there
are trees. We think there is a certain kind of large green living
object, that grows and is related in a certain way to its environment;
and we name this kind of thing 'tree'. But maybe as a matter of
fact we are not in the sort of environment we think we are in. Maybe
we are in a sort of environment of a totally different sort, of
such a sort that in fact we can't form the sort of thoughts we think
we can form. We think we can form thoughts of certain kind, but
in fact we cannot. That could be the case. Then it isn't so much
(or only) that our thoughts might be systematically and massively
mistaken; instead it might be that we can't think the thoughts we
think we can think. Now as a matter of fact we can't take this skepticism
seriously; and, indeed, if we are created by God we need not take
it seriously, for God would not permit us to be deceived in this
massive way.
(P) The Kripke-Wittgenstein Argument
From Plus and Quus (See Supplementary Handout)
(Q) The General Argument from Intuition.
We have many kinds of intuitions:
(1) logical (narrow sense and broad sense):. the intuitions
codified in propositional modal logic--if it could be the case that
the moon is made of green cheese, then it is necessary that that
could be so; moral, (2) arithmetical, set theoretical and mathematical
generally, (3) moral, (4) philosophical (Leib's Law; there aren't
any things that do not exist; sets don't have the property of representing
things as being a certain way; neither trees nor numbers are neither
true nor false; there are a great number of things that are either
true or false; there is such a thing as positive epistemic status;
there is such a property as being unpunctual; and so on.) You may
be inclined to think that all or some of these ought to be taken
with real seriousness, and give us real and important truth. It
is much easier to see how this could be so on a theistic than on
a nontheistic account of the nature of human beings.
At the Mississippi Philoso Association
Meeting in Nov., l986, Robert Holyer read a paper nicely developing
this argument, and referring to John Beversluis' book, who attacks
the argument, but in a mean spirited way and not with much success.
This argument along with Augustine's "Our hearts are restless
til they rest in thee, O God."
A couple of more arguments: (1)
the argument from the causal theory of knowledge: many philosophers
think there is a problem with our alleged knowledge of abstract
objects in that they think we can't know truths about an object
with which we are not in the appropriate causal relation. They then
point out that we are not in much of any causal relation with abstract
objects, and conclude, some of them, that there is a real problem
with our knowing anything about abstract objects. (e.g., Paul Benacerraf.)
But if we think of abstract objects as God's thoughts, then he is
in causal relation with them, and also with us, so that there should
be no problem as to how it is that we could know something about
them. (On the causal theory of knowledge, if you think of abstract
objects as just there, and as not standing in causal relations,
then the problem should really be that it is hard to see how even
God could have any knowledge of them.)
There is another realism anti-realism
argument lurking here somewhere, indicated or suggested by Wolterstorff's
piece in the Tomberlin metaphysics volume. It has to do with whether
there are really any joints in reality, or whether it might not
be instead that reality doesn't have any joints, and there are no
essential properties of objects. Instead, there is only de dicto
reality (this could be the argument from de re modality) with all
classifications somehow being done by us. Interesting. Also another
topic for Christian philosophy.
Another argument, brought to my
attention by Nick Wolterstorff: the Chomsky argument from language
learning. look this us. Where does C say any such thing? And where
exactly does it go? Does it go with the KW plus quus argument?
Another argument. Thomas Nagel,
the view from nowhere 78ff. Thinks it amazing that there should
be any such thing as the sort of objective thinking or objective
point of view that we do in fact have. Perhaps it is really amazing
only from a naturalist point of view. He says he has no explanation.
Maybe you find it amazing, maybe you don't. (I'm not sure I see
why it is amazing yet.) He argues cogently that there is no good
evolutionary explanation of this: first, what needs to b explained
is the very possibility of this, and second, supposed that is explained,
he goes on to argue that evolution gives us no good explanation
of our higher mental abilities. The question is whether the mental
powers necessary for the making of stone axes, and hunter-gatherer
success are sufficient for the construction of theories about sub
atomic particles, proofs of Gdel's theorem, the invention of the
compact disc, and so on. He thinks not. So he is really on to something
else: not so much 'objective thinking' as higher mental powers involved
in these striking intellectual accomplishments.
The evolutionary explanation would
be that intellectual powers got started by going along for the ride,
so to speak, and then turned out to be useful, and were such that
improvements in them got selected when we came down from the trees.
(At that point a bigger brain became useful (Don't whales have an
even bigger one?). A sort of two part affair, the first part being
accidental. So then the second part would be selected for survival
value or advantage. But of course the question is whether this gives
the slightest reason to think these theories have any truth to them
at all. And he fails to mention the fact that all that really gets
selected is behavior; there are various combinations of desire and
belief that can lead to adaptive actions even if the belief is completely
mistaken.
III. Moral arguments
(R) moral arguments (actually R1
to Rn)
There are many different versions
of moral arguments, among the best being Bob Adams' favored version
(in "Moral Arguments for Theistic Belief" in C. Delaney,
Rationality and Religious Belief (Notre Dame). (1) One might
find oneself utterly convinced (as I do) that morality is objective,
not dependent upon what human beings know or think, and that it
cannot be explained in terms of any "natural" facts about
human beings or other things; that it can't ultimately be explained
in terms of physical, chemical or biological facts. (2) One may
also be convinced that there could not be such objective moral facts
unless there were such a person as God who, in one way or another,
legislates them.
Here consider George Mavrodes' argument
that morality would be 'queer' in a Russellian or nontheistic universe
(in "Religion and the Queerness of Morality" in Rationality,
Religious Belief and Moral Commitment, ed. Audi and Wainwright.)
Other important arguments here:
A.E Taylor's (The Faith of a Moralist) version, and Clem
Dore's (and Sidgwick's) Kantian argument from the confluence of
morality with true self-interest, some of the other arguments considered
by Bob Adams in the above mentioned paper, and arguments by Hastings
Rashdall in The Theory of Good and Evil and by W.R. Sorley,
Moral Values and the Idea of God which we used to
read in college.
(R*) The argument from evil.
Many philosophers offer an
anti-theistic argument from evil, and perhaps they have some force.
But there is also a theistic argument from evil. There is real and
genuine evil in the world: evil such that it isn't just a matter
of personal opinion that the thing in question is abhorrent, and
furthermore it doesn't matter if those who perpetrate it think it
is good, and could not be convinced by anything we said. And it
is plausible to think that in a nontheistic or at any rate a naturalistic
universe, there could be no such thing. So perhaps you think there
is such a thing as genuine and horrifying evil, and that in a nontheistic
universe, there could not be; then you have another theistic argument.
How to make this argument more specific?
"what Pascal later called the 'triple abyss' into which mankind
has fallen: the libidinal enslavement to the egotistical self: the
libido dominandi, or lust for power over others and over
nature; the libido sentiendi, or lust for intense sensation;
and the libido sciendi, or lust for manipulative knowledge,
knowledge that is primarily used to increase our own power, profit
and pleasure." Michael D. Aeschliman "Discovering the
Fall" This World Fall l988 p. 93.
How think about utterly appalling
and horrifying evil? The christian understanding: it is indeed utterly
appalling and horrifying; it is defying God, the source of all that
is good and just. It has a sort of cosmic significance: in this
way it is the other side of the coin from the argument from love.
There we see that the deep significance of love can't be explained
in terms of naturalistic categories; the same goes here. From a
naturalistic perspective, there is nothing much more to evil--say
the sheer horror of the holocaust, of Pol Pot, or a thousand other
villains--than there is to the way in which animals savage each
other. A natural outgrowth of natural processes.
Hostility, hatred, hostility towards
outsiders or even towards one's family is to be understood in terms
simply of the genes' efforts (Dawkins) to ensure its survival. Nothing
perverted or unnatural about it. (Maybe can't even have these categories.)
But from a theistic pint of view, deeply perverted, and deeply horrifying.
And maybe this is the way we naturally see it. The point here is
that it is objectively horrifying. We find it horrifying: and that
is part of its very nature, as opposed to the naturalistic way of
thinking about it where there really can't be much of anything like
objective horrifyingness.
In Peter Berger, A Rumor of Angels,
around page 53, there is an argument that certain kinds of human
wickedness are so appalling that they require something like hell.
The thing to do here: take an example
of some really horrifying evil-- the Dostoyevsky thing from one
of the visual aids.
On a naturalistic way of looking
at the matter, it is hard to see how there can really be such a
thing as evil: (though of course there could be things we don't
like, prefer not to happen): how could there be something that was
bad, worthy of disapproval, even if we and all other human beings
were wildly enthusiastic about it? On naturalistic view, how make
sense of (a) our intuition that what is right or wrong, good or
evil does not depend upon what we like or think) and (b) our revulsion
at evil--the story the prophet Nathan told David, at the sort of
thing that went on in Argentina, Stalin's Russia, Hitler's Germany
(Sophie's Choice); the case mention in Surin's book about
the young child who was hanged and remained living for half an hour
after he was hanged; the fact that the Nazis were purposely trying
to be cruel, to induce despair, taunting their victims with the
claim that no one would ever know of their fate and how they were
treated; the thing from Dostoyevsky, who says that beasts wouldn't
do this, they wouldn't be so artistic about it. compare dying from
cancer to the sort of horror the Germans did: the second is much
worse than the first, somehow, but not because it causes more pain.
It is because of the wickedness involved, a wickedness we don't
see in the cancer. An appalling wickedness.
There seems to be a lot more to
it than there could be on a naturalistic account of the matter.
So the naturalist says: evil is a problem for you: why would a good
God permit evil, or all that evil? But evil also a problem for him:
There really isn't any evil, (or isn't any of a certain sort, a
sort such that in fact we think there is some of that sort) on a
naturalistic perspective. (This needs working out, but I think there
is something to it.)
IV. Other Arguments
(S) The Argument from Colors
and Flavors (Adams and Swinburne)
What is the explanation of the correlation
between physical and psychical properties? Presumably there is
an explanation of it; but also it will have to be, as Adams and
Swinburne say, a personal, nonscientific explanation. The most plausible
suggestion would involve our being created that way by God.
(T) The argument from Love
Man-woman, parent-child, family,
friendship, love of college, church, country--many different manifestations.
Evolutionary explanation: these adaptive and have survival value.
Evolutionarily useful for male and female human beings, like male
and female hippopotami, to get together to have children colts)
and stay together to raise them; and the same for the other manifestations
of love. The theistic account: vastly more to it than that: reflects
the basic structure and nature of reality; God himself is love.
(U) The Mozart Argument
On a naturalistic anthropology,
our alleged grasp and appreciation of (alleged) beauty is to be
explained in terms of evolution: somehow arose in the course of
evolution, and something about its early manifestations had survival
value. But miserable and disgusting cacophony (heavy metal rock?)
could as well have been what we took to be beautiful. On the theistic
view, God recognizes beauty; indeed, it is deeply involved in his
very nature. To grasp the beauty of a Mozart's D Minor piano concerto
is to grasp something that is objectively there; it is to appreciate
what is objectively worthy of appreciation.
(V) The Argument from Play and enjoyment
Fun, pleasure, humor, play,
enjoyment. (Maybe not all to be thought of in the same way.) Playing:
evolution: an adaptive means of preparing for adult life (so that
engaging in this sort of thing as an adult suggests a case of arrested
development). But surely there is more to it than that. The joy
one can take in humor, art, poetry, mountaineering, exploring, adventuring
(the problem is not to explain how it would come about that human
beings enjoyed mountaineering: no doubt evolution can do so. The
problem is with its significance. Is it really true that all there
is to this is enjoyment? Or is there a deeper significance? The
Westminster Shorter Catechism: the chief end of man is to glorify
God and enjoy him (and his creation and gifts) forever.
(W) Arguments from providence and
from miracles
(X)
C.S. Lewis's Argument from Nostalgia
Lewis speaks of the nostalgia
that often engulfs us upon beholding a splendid land or seascape;
these somehow speak to us of their maker. Not sure just what the
argument is; but suspect there is one there.
(Y) The argument from the meaning
of life
How does thought about the
meaningfulness or meaninglessness of life fit in? Sartre, Camus,
Nagel.
(Z) The Argument from (a) to (Y)
These arguments import a great
deal of unity into the philosophic endeavor, and the idea of God
helps with an astonishingly wide variety of cases: epistemological,
ontological, ethical, having to do with meaning, and the like of
that. |