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Return to Living Philosophy, 3e Student Resources
Chapter 9 Quiz
Descartes: Doubt and Certainty
Quiz Content
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Descartes sets out to examine his opinions in order to __________.
better understand his nature
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achieve intellectual purity
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establish a firm and permanent structure for the sciences
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better understand God
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Descartes says that, for all he knows, he may be __________.
dreaming
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a god
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infallible
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perfect
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Descartes argues against trusting the senses on the grounds that __________.
they never directly deceive him
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they sometimes deceive him
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God allows sensory deception
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sense perception is indubitable
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Descartes seeks __________ as the foundation of knowledge.
divine revelation
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probability
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certainty
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sense experience
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Epistemology is the philosophical study of __________.
reality
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knowledge
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divinity
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morality
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In order to know a proposition, you must believe, it must be __________, and you must be __________ in believing it.
objective; certain
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true; justified
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necessary; confident
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indubitable; correct
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A priori knowledge is knowledge gained __________.
from divine revelation
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from sense experience
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independently of or before sense experience
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from tradition
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Those who believe that through unaided reason we can come to know what the world is like are called __________.
empiricists
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skeptics
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rationalists
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dogmatists
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__________ is the view that our knowledge of the empirical world comes solely through sense experience.
Rationalism
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Empiricism
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Dogmatism
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Skepticism
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Descartes deepens his doubts at the end of Meditation I by supposing he is being deceived by __________.
the Church
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an evil genius
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God
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sensation
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After using the dream argument to cast doubt on his knowledge of material reality, Descartes extends his skepticism to include knowledge of __________.
morality
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God's existence
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Platonic Forms
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mathematics
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At the beginning of Meditation II, Descartes arrives at the certainty of __________.
the evil genius
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God's existence
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his existence as a thinking thing
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his sense perception
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Descartes claims to have discovered a first principle for acquiring knowledge according to which all things __________.
known to be true and good are knowable
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clearly and distinctly perceived are true
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attributable to divine providence are true
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hidden from the evil genius are knowable
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Descartes argues that he is capable of knowledge because __________.
God is not subject to the evil genius's machinations
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the evil genius cannot prevent him from knowing that things like wax exist
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God would not allow him to be deceived if he correctly applies his God-given abilities
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the certainty of the "I think" means he can know objects are real
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Descartes asserts, "I am, I exist, is necessarily true __________."
so long as God does not deceive me
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each time that I am not being deceived by the evil genius
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each time that I pronounce it, or that I mentally conceive it
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each time that God reminds me
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Descartes says that because it is possible that an evil genius is deceiving him, he can never be sure of anything, including his own existence.
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False
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According to Descartes, only beliefs that are certain can count as knowledge.
True
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False
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For Descartes, the statement "I am, I exist" is necessarily true every time he utters it.
True
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False
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In order to establish a firm foundation for knowledge, Descartes sets out to reject all and only his false opinions)
True
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False
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Descartes believes that anything conceivable is logically possible.
True
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False
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Descartes asserts that God would not deceive him because God is perfect.
True
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False
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Although Descartes is able to cast doubt on his knowledge of material reality, he finds the abstract propositions of mathematics impossible to doubt.
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False
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Descartes's first principle of knowledge is about the clarity and distinctness of his ideas.
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False
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Descartes thinks that, since God could be deceiving him, God is not all good.
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False
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According to Descartes, material bodies are ultimately known by an intuition of the mind rather than by the senses.
True
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False
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