
http://www3.nd.edu/~twang6/guides/HumeEnquiryNotes.pdf
CRITICS OF AOG
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CRITIQUE
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Gaunilo of Marmoutiers (1)
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Think of a perfect island.
According to Anselm’s proof, this island must exist, because a perfect
island in reality is superior to a perfect island only in thought. Reductio ad absurdum argument
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Gaunilo of Marmoutiers (2)
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God cannot be fully conceived because his nature is
inexhaustible. Therefore, if humans
cannot fully conceive of God, AOG cannot work
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St. Thomas Aquinas
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Echoed Gaunilo (2). ST 1aQ2
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David Hume
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Whatever we can conceive as existent, we can also conceive as
non-existent. Dialogues Concerning
Natural Religion (1776)
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Immanuel Kant
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Necessary propositions regarding a being are only necessarily true if
the being exists; for example, a triangle must have 3 angles only if
the triangle exists. Critique of
Pure Reason (1787)
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Bertrand Russell
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“The argument does not, to a modern mind, seem
very convincing, but it is easier to feel convinced that it must be
fallacious than it is to find out precisely where the fallacy
lies." History of Western Philosophy
(1972)
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Richard Dawkins
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"The very idea that such grand conclusions
should follow from such logomachist trickery offends me aesthetically…[I feel
a] "deep suspicion of any line of reasoning that reached such a
significant conclusion without feeding in a single piece of data from the
real world." The God Delusion
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DEFENDERS OF AOG
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DEFENSE
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Rene Descartes
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The concept of God is that of a supremely
perfect being, holding all perfections. Existence is a perfection: it would
be more perfect to exist than not to exist. Thus, if the notion of God did
not include existence, it would not be supremely perfect, as it would be
lacking a perfection. Consequently, the notion of a supremely perfect God who
does not exist, is unintelligible.
Therefore, according to his nature, God must exist. Fifth Meditation (1641)
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Mulla Sadra
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God by definition is perfection in existence.
Existence is reality. Reality is
graded on a scale of perfection. That
scale must have a limit, a point of greatest intensity of existence. That point is God. Hence God exists. Argument
of the Righteous (c. 1610)
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Kurt Gödel
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X is God-like if and only if X has as essential
properties those and only those properties which are positive (i.e., not
privative). If a property is positive,
its negation is not positive. The
property of being God-like is positive.
Necessary existence is positive. If a property is positive, then it is
consistent [with actual existence].
The property of being God-like is consistent. Therefore, existence is
an essence of that thing. Therefore,
God exists. Posthumous Papers (probably composed c. 1941)
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WEEK
1
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TOPIC
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READING (PREPARE BEFORE CLASS)
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T
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Syllabus and
Introduction
Thales
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“Thales,” in Robin Waterfield, The First Philosophers: The Pre-Socratics and Sophists,
(“Waterfield”) 11-13
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Th
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Pre-Socratic
Philosophy
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Jacques Maritain,
Introduction to Philosophy (Sheed
& Ward) (“Maritain”) 21-33
Waterfield,
“Heraclitus of Ephesus” 32-46
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WEEK
2
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T
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Pre-Socratic
Philosophy
Zeno
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Waterfield, “Zeno
of Elea,”
69-80
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Th
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Pre-Socratic
Philosophy
Parmenides
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Waterfield, “Parmenides
of Elea,” 49-66
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WEEK
3
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T
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Plato: Definition of Piety
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Euthyphro, in Stephen M. Cahn, Classics of Western Philosophy (“CWP”)
20-25
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Th
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Plato: The Charges Against Socrates
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Euthyphro, 26-28
Apology, CWP 29-32
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WEEK
4
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T
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Plato: Immortality of the Soul
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Phaedo
CWP 49-54
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Th
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WEEK
5
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T
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Plato: Justice
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Republic
Book I,
CWP 119-124
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Th
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Plato: The Just Man. The Just City.
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Republic
Book II,
CWP 136-140
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WEEK
6
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T
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Plato: Education of the Guardians
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Republic
III,
CWP 141-143
Republic
IV,
CWP 151-154
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Th
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Plato: The Philosopher King
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Republic V-VI,
CWP 154-160
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WEEK
7
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T
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Plato: Image of the Cave
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Republic
VII-VIII,
CWP 160-164
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Th
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Plato: Tyranny
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Republic
IX
CWP 164-168
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WEEK
8
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T
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Epicureanism
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Epicurus, Letter
to Menoeceus
CWP 315-317
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Th
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Stoicism:
Epictetus
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Encheiridion
CWP 323-326
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WEEK
9
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T
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Scepticism:
Sextus Empiricus
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CWP 337-341
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Th
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Neo-Platonism
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Plotinus, Enneads
CWP 388-391
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WEEK
10
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T
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Review
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Th
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Final Examination
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WEEK
1
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TOPIC
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READING
(PREPARE BEFORE CLASS)
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T 11/13
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Aristotle: Politics
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Politics
Book I
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Th 11/15
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Aristotle: Politics
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Politics Book II
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WEEK
2
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T 11/20
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Aristotle: Politics
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Politics Book III
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Th 11/22
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NO SCHOOL
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WEEK
3
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T 11/27
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Aristotle: Politics
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Politics Book IV
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Th 11/29
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Aristotle: The Soul
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De
Anima Book I
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WEEK
4
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T 12/4
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Aristotle: The Soul
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De
Anima Book II
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Th 12/6
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Aristotle: The Soul
Introduction to
Aquinas
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De
Anima Book III
Peter Kreeft,
ed., Summa of the Summa (“ST”)
Introduction
11-22
Aquinas’ Prologue
33-34
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WEEK
5
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T 12/11
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Aquinas:
Selections from Summa Theologiae
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ST I, 1
The Nature and
Domain of Sacred Doctrine
Articles 1-10
Kreeft 35-50
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Th 12/13
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Aquinas: Selections from Summa Theologiae
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ST I, 2
Proofs for the
Existence of God
Kreeft 53-70
Anselm: Proofs for Existence of God
Proslogion
(handout)
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WEEK
6
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T 12/18
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Aquinas: Selections from Summa Theologiae
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ST I, 3-26
The Nature of God
Kreeft 73-81,
113-122
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Th 12/20
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Aquinas: Selections from Summa Theologiae
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ST I, 3-26, cont.
The Nature of God
Kreeft 154-163,
168-179
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WEEK
7
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T 1/8
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Aquinas: Selections from Summa Theologiae
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ST I, 44-49
Cosmology
Kreeft 189-218
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Th 1/10
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Aquinas: Selections from Summa Theologiae
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ST I, 75-78
Anthropology
Kreeft 241-267
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WEEK
8
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T 1/15
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Aquinas: Selections from Summa Theologiae
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ST I-II, 18-21
Ethics: Good and Evil
Kreeft 414-432
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Th 1/17
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Aquinas: Selections from Summa Theologiae
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ST I-II, 71-89
Ethics: Vices
Kreeft 479-500
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