SOCCIO ARCHETYPES OF WISDOM
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CHAPTER 9
THE RATIONALIST: RENÉ DESCARTES
Chapter 9 Key Concepts
A combination of factors, including Luther s Protestant
Reformation and Copernicus s advances in scientific
understanding and technique, led to the erosion of the
René Descartes s scientific and mathematical interests
demanded observable, provable evidence of a nature lacking
in the cumbersome reliance on authority of Scholasticism and
Reliance on reason as the ultimate source of knowledge is
a form of rationalism. In general, rationalists believe that
abstract reasoning can produce absolutely certain truths about
Rationalists rely on the coherence theory of truth: New or
unclear ideas are evaluated in terms of rational or logical
consistency and in relation to already established truths.
Descartes replaced Scholastic authority with a rational
Descartes s interest in the thinking thing itself was the
SOCCIO ARCHETYPES OF WISDOM
Descartes recognized the need for orderly thinking, which
Methodic doubt is a form of skepticism that rejects any
idea that could possibly be false, no matter how remote that
Even an evil genius could not shake one fundamental
idea: I think, therefore I exist. This is known as the Cogito.
Having found an undoubtable truth, Descartes tried to
build a reliable foundation for knowledge by appealing to an
Having established the existence of God to his satisfaction,
Descartes believed that he had clearly and distinctly
Descartes rejected the materialists challenge to the
possibility of free will with Cartesian dualism, the belief that
SOCCIO ARCHETYPES OF WISDOM
One current critique of modern philosophy holds that,
with rare exceptions, Western philosophers have failed to
recognize that they have personal, social, gendered, and
Susan Bordo holds that what she calls the masculinizing
of philosophical thought reached a watershed at the
beginning of the modern period. Bordo asserts that Cartesian
Chapter 9 Teaching Tips
1. Point out relevant similarities between our era and
Descartes s in regard to how growth in scientific and
technological sophistication seems to be accompanied by
increased public confusion and distrust in experts. You might
cite persistent interest in pseudoscience, alternative medicine,
exotic (to us) religions, and divisiveness among the hundreds
of identified denominations of Christianity. How can any
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2. Discuss how Descartes s method avoids the fallacy of
false authority. The fallacy of false authority is the error in
reasoning that results when we accept the word of experts
speaking outside their fields, or when we uncritically rely on
the testimony of others without checking it against our own
experiences and reason. You might show clips from any
television show in which experts disagree with laypersons
3. The Philosophical Query on page 270 raises the important
issue of whether Descartes s demand for clarity and
distinctness satisfies its own criteria. Use it to raise the issue of
4. Spend some time distinguishing between plausible and
possible. (See the Philosophical Query on page 258.) When
5. Begin your discussion of Descartes s ontological argument
by asking the class to design the perfect vehicle. (How many
passengers is the perfect number of passengers? What is the
perfect transmission? Fuel?) It will soon become clear that
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6. Introduce the mind body problem by discussing such
contemporary issues as legal responsibility for acts committed
7. Ask a psychology teacher to discuss various forms of
behaviorism with your class, concentrating on the notion that
the mind is really the brain plus certain biochemical
reactions. How, for example, can a pill affect my mind? Does
the placebo effect refute dualism?
8. Here s an anecdote to use to underscore why it took so
long to make the epistemological turn: Years ago, a
Midwestern neighborhood made the news when citizens
began reporting strange scratches and pockmarks on the front
windshields of their cars. The phenomenon first came to light
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9. Carefully discuss common stereotypes regarding
feminine intuition and emotionalism and the idea that
men are more rational than women in terms of the
traditional model of knowing. Refer to the controversy
generated by the then-president of Harvard University
Lawrence Summers s 2005 claim that women may be
genetically less suited for science than men. This might be an
effective place to raise questions about rationality in general.
How rational is this culture, which is said to have been
shaped by such modern values as objectivity, rationality, and
universality?
10. In 2011, a nonphysician, nonscientist Republican
presidential primary candidate caused a stir by asserting that
certain childhood vaccines can cause autism. Many scientists
11. In relation to tip 10, stress the matter of nonexperts
choosing among disagreeing experts. Have the class create a