[p. 424] In some circles it seems to be rapidly
becoming a new orthodoxy that the whole enterprise from Descartes, through
Locke and Kant, and pursued by various nineteenth- and twentieth-century
succession movements, was a mistake. Within this new agreement, however, what
is becoming less and less clear is what exactly it means to overcome the
epistemological standpoint [….]
Rorty’s book seems to offer a clear and
plausible answer. The heart of the old epistemology was the belief in a foundational enterprise (Princeton,
1979:132). What the positive sciences need to complete [then], on this view,
was a rigorous discipline that could check the credentials of all truth claims.
An alleged science could only be valid if its findings met this test; otherwise
it rested on sand. Epistemology would ultimately make clear just what made
knowledge claims valid, and what ultimate degree of validity they could lay
claim to. (And, of course, one could come up with a rather pessimistic,
skeptical answer to the latter question. […])
In practice, of course, epistemologists took
their cue from what they identified as the successful sciences of their day,
all the way from Descartes’s infatuation with mathematics to contemporary vogue
for reduction to physics. But the actual foundational science was not supposed
itself to be dependent on any of the empirical sciences, and this obviously on
pain of a circularity that would sacrifice its foundational character.
Arguments about the source of valid knowledge claims were not supposed to be empirical.
If we follow this description, then it is clear
what overcoming epistemology has to mean. It will mean abandoning
foundationalism. On this view, Quine would figure [p. 425] among the prominent
leaders of this new philosophical turn, since he proposes to “naturalize”
epistemology, that is, deprive it of it’s a priori status and consider it as
one science among others, one of many mutually interacting departments of our
picture of the world. […]
But there is a wider conception of the
epistemological tradition [….] If I had to sum up this understanding in a
single formula, it would be that knowledge is to be seen as correct
representation of an independent reality. In its original form it saw knowledge
as the inner depiction of an outer reality.[1]
The reason why some thinkers prefer to focus on
this interpretation, rather than merely on the foundationalist ambitions that
are ultimately (as Quine has shown) detachable from it, is that it is bound up
with very influential and often not fully articulated notions about science and
about the nature of human agency. […]
The link between this representational
conception and the new, mechanistic science of the seventeenth century. This
is, in fact, twofold. On one side, the mechanization of the world picture
undermined the previously dominant understanding of knowledge and thus paved
the way for the modern view. The most important traditional view was that of
Aristotle, according to which when we come to know something, the mind <nous> becomes one with the object of thought
(Cf., e.g., De Anima III, 430a20,
also 431a1 and 431b20-23). Of course, this is not to say that they become
materially the same thing; rather, the idea is that they are informed by the
same <eidos> (Cf., e.g., De Anima III, 430a9 and 431b32). Here was
a conception quite different form the representational model, even though some
of the things Aristotle said could be construed as supporting this later. The
basic bent of Aristotle’s model could much better be described as
participational: being informed by the same <eidos>, the mind participated in the being of the known object,
rather than simply depicting it.
But this theory totally depends on the
philosophy of forms. Once one no longer explains the way things are in terms of
the species that inform them, this conception of knowledge is untenable and
rapidly becomes close to unintelligible. We have great difficulty in
understanding it today. The representational view can easily then appear as the
only available alternative.
[… p. 426] If we see [perception] as another
process in a mechanistic universe, we cannot but construe it as involving as a
crucial component the passive reception of impressions from the external world.
Knowledge then hangs on a certain relation holding between what is “out there”
and certain inner states that this external reality causes in us. This
construal, valid for Locke, applies just as much to the latest AI-inspired
models of thinking. It is one of the mainsprings of the epistemological
tradition.
The epistemological construal is, then, an
understanding of knowledge that fits well with modern mechanistic science. This
is one of its great strengths, and certainly this connection contributes to the
present vogue of computer-based models of the mind. […] It is in fact heavily
overdetermined. […]
[According to Descartes] if the object of my
musings happens to coincide with real events in the world, this doesn’t give me
knowledge of them. This congruence
has to come about through a reliable method, generating well-founded
confidence. Science requires certainty, and this can only be based on that
undeniable clarity which Descartes called évidence.
“Every science is a certain and evident knowledge,” runs the opening sentence
of the second of the Rules for the
Direction of the Mind.
Now certainty is something that the mind has to
generate for itself. It requires a reflexive turn. […] The correct issue of
science, that is, of certainty, can be posed—the issue of the correspondence of
idea to reality, which Descartes raises and then disposes of through the
supposition of the malin genie [evil
genius] and the proof of his negation, the veracious God.
The confidence that underlies this whole
operation is that certainty is something the thinker can generate for himself,
by ordering his thoughts correctly—according to clear and distinct connections.
[…] The very fact of reflexive clarity is bound to improve our epistemic
position, as long as knowledge is understood representationally. […]
[p. 427] Descartes is thus the originator of
the modern notion that certainty is the child of reflexive clarity [….]
There is still a strong draw toward
distinguishing and mapping the formal operations of our thinking. In certain
circles it would seem that an almost boundless confidence is placed in the
defining of formal relations as a way of achieving clarity and certainty about
our thinking, be it in the (mis)application of rational choice theory to
ethical problems or in the great popularity of computer models of the mind [….]
The plausibility of the computer as a model of
thinking comes partly from the fact that it is a machine, hence living “proof”
that materialism can accommodate explanations in terms of intelligent
performance; but partly too from the widespread faith that our intelligent
performances are ultimately to be understood in terms of formal operations. The
computer, it can be said, is a “syntactic engine.” […] The most perspicuous
critics of the runaway enthusiasm with the computer model, such as Hubert
Dreyfus, tirelessly point out how implausible it is to understand certain of
our intelligent performances in terms of a formal calculus, including our most
common everyday ones, such as making our way around our rooms, streets, and
gardens, picking up and manipulating the objects we use, and so on. But the
great difficulties that computer simulations have encountered in this area don’t
seem to have dimmed the enthusiasm of real believers in this model. It is as though
they had been vouchsafed some certain revelation a priori that it must all be done by formal calculi. Now
this “revelation,” I submit, [p. 428] comes from the depths of our modern
culture and the epistemological model that is anchored in it, whose strength is
based not just on its affinity to mechanistic science but also on its
congruence to the powerful ideal of reflexive, self-given certainty.
---
Notes:
1. Cf. Descrates’s statement in his letter to
Gibieuf of 19 January 1642, where he declares himself “assured that I can have
any knowledge of what is outside me, [that] by the mediation [of] key ideas
that I have had in me.” […] The notion that the modern epistemological
tradition is basically dominated by this understanding of representation was
pioneered by Heidegger [….]
---
Source: Charles Taylor, "Overcoming Epistemology," in After Philosophy: End or Transformation, ed. Kenneth Baynes, James Bohman, and Thomas McCarthy (Cambridge, MA: MIT Press, 1987), in Twentieth-Century Philosophy, ed. Forrest E. Baird and Walter Kaufmann (Upper Saddle River, NJ: Prentice Hall, 2003), 424-428.
No comments:
Post a Comment
All comments ad hominem or deemed offensive by the moderator will be subject to immediate deletion.