Lecture Supplement on Descartes’ “Second Meditation:"
Copyright © 2018 Bruce W.
Hauptli
63 Doubt...until I shall find something that is
certain.
63-64 The Cogito.
-Cf., Descartes’ Discourse On
Method.[1]
-What of “I walk therefore I am a
body with legs?”[2]
-What if Hamlet says “I think
therefore I am”?
-What of Jorge Luis Borges’ “The Circular Ruins,”[3] or Lewis Carroll’s Alice in Wonderland and Through the Looking-Glass?[4]
-Discuss the difference between
the “occurrent “and the “substantial”
senses of ‘I.’ Indicate why the
distinction is important here, and why it is the “substantial” sense which
Descartes wants and needs (but doesn’t seem entitled to).
--Memory and the occurrent
conception of the self: Christopher Nolen’s movie
Memento [2000]—without short-term memory, we get a very different
“self!” Of course there is also
“long-term” memory, and other sorts!
Moreover, does memory entail any sort of certainty?
--identity and Theseus’ ship—my
“updated case would have one imagine a ship (Theseus’) which is rebuilt plank by
plank (with the original planks saved and then reassembled according to the
original plan. The question is:
“Which of the resultant ships is Theseus’ ship?”
-Nonetheless, Descartes concludes
that he knows he is an enduring thing—a
substance:
--“For it is so obvious that it
is I who doubt, I who understand, and I who will, that there is nothing by which
it could be explained more clearly.
But indeed it is also the same “I” who imagines; for although perhaps, as I
supposed before, absolutely noting that I imagined is true, still the very power
of imagining really does exist, and constitutes a part of my thought.
Finally, it is this same “I” who senses or who is cognizant of bodily
things as if through the senses….”
-Indubitability—three senses: psychological, logical, metaphysical:
“psychological” certainty would be where a
specific individual finds herself unable to raise doubts (because of her
psychological constitution, or her deeply felt convictions, or her
predispositions, etc.); “logical” certainty would be where
no individual could raise doubts (because logic rules them out); and
“metaphysical” certainty would be where
absolutely no doubts could be raised (where error is absolutely
inconceivable). “While we thus
reject all that of which we can possibly doubt, and feign that it is false...we
cannot in the same way conceive that we who doubt these things are not; for
there is a contradiction in conceiving that what thinks does not at the same
time as it thinks, exist.”[5]
--Descartes asks “Do I exist?”
The American philosopher, Morris Cohen, asks “Who wants to know?”[6]
-“Everything in which there
resides immediately, as in a subject, or by means of which there exists anything
that we perceive, i.e., any property, quality, or attribute, of which we have a
real idea, is called a Substance;
neither do we have any other idea of substance itself, precisely taken, than
that it is a thing in which this something that we perceive or which is present
objectively in some of our ideas, exists formally or eminently.
For by means of our natural light we know that a real attribute cannot be an attribute
of nothing.”[7]
In his Principles of Philosophy,
Descartes defines ‘substance’ more carefully (and this is taken as
the Cartesian definition) as follows:
“by substance, we can understand nothing else than a thing which so exists that
it needs no other thing in order to exist.
And in fact only one single substance can be understood which clearly
needs nothing else, namely God. We
perceive that all other things can exist only by the help of the concourse of
God. That is why the word substance
does not pertain univoce to God and to other things, as they say in the Schools, that
is, no common signification for this appellation which will apply equally to God
and to them can be distinctly understood.”[8]
--Discuss the notion of
the “natural light.” What guarantees
the truth of the “dictates” of the natural light?[9]
-In his City of
65-66 Sum Res Cogitans.
But I do not yet know with sufficient clearness what I am, though assured
that I am. What, then, did I
formerly think I was?
-A “rational animal”—this leaves us with two questions to answer (“What
is rationality?” and “What is an animal?”) and we have no way of getting started
here.
-64 Body:
--Discuss the notion of an essential
characteristic—Descartes is endeavoring to discover what he is “essentially.”[10]
-65 Soul: nutrition, walking (locomotion), perception?
-Thinking:....I am a thinking
thing.
-“...in the strict sense the knowledge of this “I”
does not depend upon things of whose existence I do not yet have knowledge.”
-Is this the case?
--What right has he to
a thing (a single substance)?
--What right has he to claim that he is a thing (a
substance)?
--Memory, “occurrent self-identity,” and Theseus’
ship—my “updated case would have one imagine a ship (Theseus’) which is rebuilt
plank by plank (with the original planks saved and then reassembled according to
the original plan. The question is:
“Which of the resultant ships is Theseus’ ship?”
--The 2000 movie
Memento directed by Christopher Nolan
is worth viewing and considering in the context of our discussions here.
The movie centers on the trials undergone by a character who lacks the
form of “short-term” memory which allows us to have plans for the future or
remember what we did recently. While
he can speak language, drive cars, and interact with the world, he can not
remember whether he is chasing someone or being chased, who he is, or what he is
doing. While he writes and even
tattoos notes to himself, he has to try and fight against his lack of memory to
understand what is going on in “his life.”
-“And when I stated that this proposition
I think, therefore I am is the first
and most certain which presents itself to those who philosophize in orderly
fashion, I did not for all that deny that we must first of all know
what is knowledge, what is existence,
and what is certainty, and that
in order to think we must be, and such
like; but because these are notions of the simplest possible kind, which of
themselves give us no knowledge of anything that exists, I did not think them
worthy of being put on record.”[11]
66 A thing which thinks is a thing which
understands, affirms, denies, wills, refuses, imagines, and perceives.
-“For it is so obvious that it is I who doubt, I
who understand, and I who desire, that there is nothing by which it could be
explained more clearly. But indeed
it is also the same “I” who imagines; for although perhaps, as I supposed
before, absolutely nothing that I imagined is true, still the very power of
imagining really does exist, and constitutes a part of my thought.
Finally, it is this same “I” who senses or who is cognizant of bodily
things as if through the senses. For
example, I now I see a light, I hear a noise, and I feel heat.
These things are false, since I am asleep.
Yet I certainly do seem to see, hear, and feel warmth.
This cannot be false.
Properly speaking, this is what in me is called “sensing.”
But this, precisely so taken, is nothing other than thinking.”
-Note: if this is what he has discovered with the
cogito, then it is fairly clear that
he has the “substantial” conception of the self in mind—few can undertake this
many complex cognitive tasks all at the same time!
No “occurrent” self would be able to “understand, affirm, deny, will,
refuse, imagine, and perceive” all at once!
-Note: In his On the Equality
of the Two Sexes [1673, anonymously], Francois Poullain de la Barre
maintains that:
it is easy to see that the difference between the two sexes
is limited to the body, since that is the only part used in the reproduction of
humankind. Since the mind merely
gives its consent, and does so in exactly the same way in everyone, we can
conclude that it has no sex.
Considered
independently, the mind is found to be equal and of the same nature in all men,
and capable of all kinds of thoughts.
It is as much exercised by small concepts as by large; as much thought is
required to conceive of a mite as an elephant….Since there seems not to be any
greater difference between the minds of the two sexes, we can say that the
difference does not lie there. It is
rather the constitution of the body, but particularly education, religious
observance, and the effects of our environment which are the natural and
perceptible causes of all the many differences between people.
A woman’s mind
is joined to her body, like a man’s, by God himself, and according to the same
laws. Feelings, passions, and the
will maintain this union, and since the mind functions no differently in one sex
than in the other, it is capable of the same things in both.[12]
67 The Wax Experiment: the wax is something
extended. Here Descartes
lets his mind “wander” and, clearly, stops, for the moment, adducing claims to
certain knowledge. In this passage
he clarifies the essential characteristic of non-mental substance (the physical
realm of corporeal things)—shape, divisibility, occupation of space, having
location, etc. The background
picture of the physical is provided by the emerging science of the day—by
Galileo’s “mechanics.”
-68 Descartes claims that he knows the wax by his
reason—not by the use of his senses or of his imagination!
-69 “Each time I know the wax, I know myself better
(than I know the wax).”
“...I manifestly know that nothing can be perceived more
easily and more evidently than my own mind.”
Critical Comments on
the Second Meditation:
(A). Attributes without substances?
Substances without attributes?
Modes?
Bernard Williams notes that “a mode presupposes
its attribute, but equally an attribute which is really present implies the
presence of a mode—a thing can not be extended without being extended in one way rather
than another.”[13]
In his Descartes, Spinoza, Leibniz: The Concept of Substance in
Seventeenth-Century Metaphysics, R.S. Woolhouse maintains that: “but even if
modes and accidents need substances, don’t substances also require modes?
Can we, as Descartes says, ‘clearly perceive a substance apart from the
mode which we say differs from it’?
Descartes’s point here is merely that substances do not require the particular
modes that they happen to have. It
is not that they do not require some modes or other.
It is clear that they do; for modes are accidental variations of an
attribute, and the distinction between a substance and at least some of its
attributes is so close as to be ‘merely a conceptual one’.
One substance can exist apart from another; it can exist apart from the
particular modes it happens to have; but it cannot exist with no modes, for
there are certain attributes without which substances are ‘unintelligible’.
For many substances the attribute of extension (the attribute of being
spatially dimensioned or of having length, breadth, and depth) is one such.
Though a given substance is intelligible without the particular modal
shape it has, it will be unintelligible with no shape at all, for it is
unintelligible apart from the attribute of extension.”[14]
(B). Descartes’ goal is the validation of reason, but isn’t
any such attempt question-begging?
(C). Does Descartes
prove that the mind and the body are different?
(D). Multiple personalities and the
cogito.
(E). We need to discuss what sort of claim Descartes makes
with his cogito—is it (A) an
inference, (B) an
intuition, or, finally, (c) is
an epistemic interpretation of the
cogito the right way to see it?[15]
(i) if the cogito is an inference,
it must look something like this:
(a) I think.
Whatever thinks exists.
Therefore, I exist.
(b) Note, however, that
if Descartes is presenting us with an
inference, the conclusion can not be the
first thing he is certain of—the premises themselves become the first
certainties (or else, they are themselves in need of justification).
(c) Moreover, the universal premise may be
questioned—especially if the evil genius hypothesis and the dreaming argument
are considered.
(d) Also, if the premises are certain, there is still the
question of whether or not Descartes (or ourselves) might be deceived regarding
the validity of the inference.
Surely the evil genius could mislead us as we consider a complex inference.
(f) Furthermore, we should note that the inference might
not in fact hold. Consider the
following comment by Bertrand Russell: “let us begin by examining Descartes’
view. “I think, therefore I am” is
what he says, but this won’t do as it stands.
What, from his point of view, he should profess to know is not “I think,”
but “There is thinking”....He would say that thoughts imply a thinker.
But why should they? Why
should not a thinker be simply a certain series of thoughts, connected with each
other by causal laws?”[16]
(g) Finally (in regard to the inference interpretation), we
should note that Spinoza raised an important objection to Descartes’ “argument.”
Feldman clarifies Spinoza’s objection as follows:
I am convinced that you could not come to know that you had
a headache by the use of [a similar] argument [similar, that is, to the
cogito].
The problem is not that the argument itself is defective....you would
undoubtedly know that you have a headache before you could go through the
various steps of the argument.
Furthermore, you would already be so certain that you have a headache that you
could not increase your certainty by the use of this argument.
Your knowledge that you have a headache would be more direct.
The headache itself is all the evidence you need for the conclusion that
you have a headache.
As I
understand him, Spinoza wants to make something like this point concerning the
Cogito argument. Perhaps there is
nothing wrong with the argument itself.
The problem is that Descartes could not have used that argument to come
to know that he exists. He
undoubtedly knew that he existed before he made use of that (or any other)
argument. His knowledge of his own
existence could not have been dependent upon any premises.
He knows immediately, and without
evidence, that he existed.[17]
(ii) if the cogito is an intuition,
there are still problems (there are places in Descartes’ works where the
intuition interpretation is warranted: “by
intuition I understand, not the fluctuating testimony of the senses, nor the
misleading judgment that proceeds from the blundering constructions of
imagination, but the conception which an unclouded and attentive mind gives us
so readily and distinctly that we are wholly freed from doubt about that which
we understand. Or, what comes to the
same thing, intuition is the
undoubting conception of an unclouded and attentive mind, and springs from the
light of reason alone; it is more certain than deduction itself in that it is
simpler, though deduction, as we have noted above, cannot by us be erroneously
conducted. Thus each individual can
mentally have intuition of the fact that he exists, and that he thinks; that the
triangle is bounded by three lines only....”[18]
The main problem, of course, is that
intuiting something does not seem to grant
it metaphysical certainty [or truth].
(iii) the “epistemic” interpretation of the
cogito treats the “argument” as neither an inference nor as an
intuition but, rather, as an “epistemic discovery.”
As Feldman says, “this belief is metaphysically certain, not because it
has been derived from indubitable premises, and not because it has been
intuited. Rather,
it is metaphysically certain simply
because there is no reason to doubt it.”[19]
This, of course, suggests a view the
Meditations which would have Descartes
seeking to find claims which we can not doubt, but which need not be
metaphysically certain.
This sort of interpretation avoids some of the problems which Descartes
encounters on the other interpretations of the
cogito, but it is inconsistent with
other things which he says. Besides
this, the basic problem with this sort of interpretation is with the claim that
there is no reason for
doubting—establishing that the reasons for doubting adduced thus far do not
provide such a rationale for doubt does not establish that there is no reason
for doubt—just that such a reason for doubting has
not yet arisen!
(F). In his Sophie’s
World: A Novel About the History of Philosophy, Jostein Gaarder suggests
that when thinking of Descartes sum res
cogitans, one remember Sartre’s “existence takes priority over essence.”
As he notes that: “throughout the entire history of philosophy,
philosophers have sought to discover what man is—or what human nature is.
But Sartre believed that man has no such eternal “nature” to fall back
on. It is therefore useless to
search for the meaning of life in general.
We are condemned to improvise.
We are like actors dragged onto the stage without having learned our
lines, with no script and no prompter to whisper stage directions to us.
We must decide for ourselves how to live.”[20]
(G). In his Tragic
Sense of Life, Miguel de Unamuno offers the following critique of Descartes:
“the defect of Descartes’ Discourse on
Method lies in his resolution to empty himself of himself, of Descartes, of
the real man, the man of flesh and bone, the man who does not want to die, in
order that he might be a mere thinker—that is, an abstraction.
But the real man returned and thrust himself into his philosophy....
The truth is
sum, ergo cogito—I am, therefore I think, although not everything that is
thinks. Is not conscious thinking
above all consciousness of being? Is
pure thought possible, without consciousness of self, without personality?”[21]
Some Questions on
Meditations I and II:
(A). What right of his to the statement that he is a
thinking substance?
(B). What of his right to talk in terms of the
substance-attribute distinction at all?
(C). What of his right to talk about a
continuous substance—the problem of multiple selves?
(D). What of the other propositions he accepts as certain
in the argument for the cogito?
(F). If you are negative on these points, where does it
leave you?
Preparation for the
Third Meditation:
Part IV of Descartes’
Discourse on Method[22]
(pp. 18-23 of our text) provides an excellent (and brief) summary of the
argument of the Meditations (both up
to this point and through the rest).
It may be a good idea to read it at this point.
As I noted above, Descartes’ deity is a philosophical deity![23]
We should contrast this sort of conception with Pascal’s “personalistic”
deity, for example.
This Meditation involves “building
a bridge” from the “subjective world” of the self to the “objective
world”—that which is “beyond” the self.
Note: the evil genius may be considered to be the
“troll” under the bridge!
He seeks the identification of a characteristic of some
ideas which assures that they [truly]
represent.
(A). Dark Pool
Analogy: if you are swimming alone in a dark pool and you feel something
brush your leg, it is natural to reach the (alarming) conclusion that you are
not alone.
(B). The “anthropology
example“:[24] find a
tribe that has a picture of a pile of stones and a picture of a complex machine:
tells us something about the level of development of the
tribe. They must have such machines
of the imagination necessary to conceive of them.
Higher order understanding exhibited by the second picture.
degrees of reality and how this applies to ideas.
objective reality of an idea → the
referential content the idea.
(C). The “Causal
Principle” and “Ideas:”
ex nihilo nihil fit
(Descartes believes it and the principle are equivalent) and, it is important to
note, he will be applying this principle to
ideas in his argument.
Aristotelian analysis of causation: the efficient cause
explains the existence of a thing, while the formal cause explains the nature of
that thing.
(D). Causation
without transfer—think of force
and of deduction:
Cause, reason, and explanation.
Together the causal principle, the idea of the
degrees of reality of ideas (objective
reality), his idea of a deity, and his certainty that he does not have the
power to cause this idea yield the proof that this deity exists!
Notes: [click on note number to return to the
text for the note]. This
supplement, and the others for Descartes’
Meditations on First Philosophy, reference
the pages in Donald A. Cress’ translation in
René
Descartes: Discourse on Method and Meditations
on First Philosophy, Fourth Edition
(Indianapolis: Hackett, 1998
[1]
Cf.,
Rene Descartes,
Discourse
on the Method for Rightly Conducting One’s
Reason and for Seeking Truth in the Sciences
[1637], trans. Donald A. Cress, in
Discourse
on Method and Meditations on First Philosophy,
trans. Donald A. Cress (fourth edition)
(Indianapolis: Hackett, 1998), p. 18.
[2]
Cf.,
Descartes,
Principles of Philosophy [1644] I 9, in
The Philosophical Works of Descartes v. 1 [1911], trans. E.S.
Haldane and G.R.T Ross (Cambridge: Cambridge
U.P., 1969), p. 222.
[3]
Cf.,
Jorge Luis Borges, “The Circular Ruins,”
op. cit.
[4]
Cf.,
The
Annotated
[5] Descartes,
Principles
of Philosophy, op. cit., I 7, p. 221.
[6] Cited in Avrum
Stroll and Richard Popkin,
Introduction to Philosophy (N.Y.: Holt
Rinehart, 1972) (second edition), p. 44.
[7] Rene Descartes,
“Arguments Demonstrating the Existence of God
and the Distinction Between Soul and Body, Drawn
Up In Geometrical Fashion,” published as part of
the “Objections and Replies” in 1641 with the
Meditations, in The
Philosophical Works of Descartes v. 2,
op. cit.,
p. 53.
[8] Descartes,
Principles
of Philosophy I 51,
op. cit.,
pp. 239-240.
[9]
Cf.,
John Morris, “Descartes’ Natural Light,”
Journal of
the History of Philosophy v. 11 (1973), pp.
169-187.
[10] Note that the
question “What is the
essential
characteristic of a knife?” presumes that there
is an essential characteristic of knives.
Aristotle makes such an assumption, and
assumes that the essence of knives is “to cut
well.”
Those of us who live in a “peanut butter
age” might maintain that knives have a variety
of functions and that there is no one of them
which is essential.
Similarly, one might contend, there might
be a variety of characteristics which are
relevant when Descartes’ question is asked
regarding the self.
[11] Descartes,
Principles
of Philosophy, op. cit., I 10, p. 222.
Note that he here allows that there are
things which need to be known prior to the
cogito.
Does this undercut his argument in any
way?
[12] Francois
Poullain de la Barre,
On the
Equality of the Two Sexes [1673,
anonymously], in
Francois Poullian de la Barre: Three Cartesian Feminist Treatises,
ed. Marcelle Welch, trans. Vivian Bosley (
[13] Bernard
Williams,
Descartes:
The
Project of Pure Enquiry (Harmonsworth:
Penguin, 1978), p. 125.
Cf.,
pp. 124-129.
[14] R.S. Woolhouse,
Descartes,
Spinoza, Leibniz: The Concept of Substance in
Seventeenth-Century Metaphysics (London:
Routledge, 1993), pp. 18-19.
[15] The discussion
of the status of the
cogito
which follows is largely lifted from Fred
Feldman, A Cartesian Introduction to Philosophy (New York: McGraw-Hill,
1986).
[16] Bertrand
Russell,
An Outline of Philosophy (London: George
Allen and Unwin, 1927), p. 7.
With this objection Russell is bringing
to bear the distinction we raised earlier
regarding the difference between the occurrent
and substantial conception of the self.
The question here is: what entitles
Descartes to assume that there is anything more
than the mere occurrence of thinking?
[17] Fred Feldman,
A
Cartesian Introduction to Philosophy, op. cit,
p. 66.
[18] Rene Descartes,
Rules For
the Direction of the Mind [posthumous,
1628], in
The Philosophical Works of Descartes, v. 1,
op. cit.,
p. 7.
[19]
Ibid.,
p. 70.
[20] Jostein
Gaarder,
Sophie’s World: A Novel About the History of
Philosophy, trans. Paulette Moller (N.Y.:
Farr, Straus and Giroux, 1994), p. 350.
[21] Miguel de
Unamuno,
Tragic Sense of Life, trans. C.J. Flitch
(N.Y.: Macmillan, 1921), p. 34.
[22] Rene Descartes,
Discourse
on the Method for Rightly Conducting One’s
Reason and for Seeking Truth in the Sciences,
op. cit.—Part IV is on pp. 18-23.
[23] For
clarification of the distinction between the
sort of deity discussed by philosophers and the
deity as many conceive it, cf. Anthony Kenny,
The God of
the Philosophers, op. cit.
[24] This example is discussed in detail in Bernard Williams, in his Descartes: The Project of Pure Enquiry, op. cit, pp. 138-142.
Email: hauptli@fiu.edu
Last revised: 04/25/18.