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a thing that is most true, it has yet to be shown why this must be the same
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thing. Aquinas perhaps had in mind a principle requiring the cause of a
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thing β s being also to be the cause of its other positive attributes or the cause
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of its perfections. If so, such a premise would need to be inserted into the
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argument before C4.
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In the world some things are found to be more and less good, more and
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less true, more and less noble, etc. But more and less are predicated of diverse
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things insofar as they approach in diverse ways that which is maximal in a
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given respect. For instance, the hotter something is, the closer it approaches
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that which is maximally hot. Therefore, there is something that is maximally
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true, maximally good, and maximally noble, and, as a result, is a maximal
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being; for according to the Philosopher in Metaphysics 2, things that are
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maximally true are maximally beings.
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But, as is claimed in the same book, that which is maximal in a given genus
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is a cause of all the things that belong to that genus; for instance, fi re, which
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is maximally hot, is a cause of all hot things. Therefore, there is something
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that is a cause for all beings of their esse , their goodness, and each of their
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perfections β and this we call God. (ST I, q2, a3, response)
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P1. There are some things that are more or less good, more or less true, or
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more or less noble.
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P2. If something is more or less F, then there is something maximally F.
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C1. There is something maximally good, something maximally true, and
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something maximally noble (substitution, and modus ponens , P1, P2).
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C2. There is something maximally true (simplifi cation, C1).
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P3. If something is maximally true, then it is maximally being.
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C3. Something is maximally being ( modus ponens , C2, P3).
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P4. If something is maximally F, then it is the cause of all things that are F.
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C4. There is something that is the cause for all beings, their goodness,
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and each of their perfections ( modus ponens , C1, P4).
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C5. We call that thing which is the cause of the being, goodness, and
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perfection of all other things β God β (defi nition).
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The Fifth Way β The Argument from the Governance
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Aquinas argues in the Fifth Way that if things always or for the most part
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act for a particular end, that is evidence of their being directed at that end
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by an intelligent agent. In nature, most natural things act always or for the
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most part for a particular end, and so nature is directed by an intelligent
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agent. Note that, for Aquinas, to act for the sake of an end does not require
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intentionality. In Aquinas β way of speaking, fi re acts for the sake of the end
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Aquinasβ Five Ways 17
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when it burns upwards and the stone acts for the sake of the end when
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falling down to the earth. One might think that evolutionary biology allows
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a way out of the design or chance dilemma, since, given evolutionary
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biology, something could always or for the most part act for the sake of an
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end but not due to either design or chance but rather natural selection.
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Aquinas β argument, however, is not aimed solely at biological entities. An
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electron, for instance, attracts positively charged particles always or for the
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most part, but it did not acquire this property via some evolutionary
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process. So even if natural selection narrows the scope of Aquinas β argument,
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it alone does not defeat the argument.
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We see that some things lacking cognition, viz., natural bodies, act for the
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sake of an end. This is apparent from the fact that they always or very frequently
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act in the same way in order to bring about that which is best, and
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from this it is clear that it is not by chance, but by design, that they attain
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the end.
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But things lacking cognition tend toward an end only if they are directed
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by something that has cognition and intelligence, in the way that an arrow is
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directed by an archer. Therefore, there is something intelligent by which all
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natural things are ordered to an end β and this we call God. (ST I, q2, a3,
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response)
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P1. If something always or for the most part acts in the same way in order
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to bring about that which is best, then it acts for the sake of an end.
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P2. Beings in nature always or for the most part act in the same way in
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order to bring about that which is best.
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C1. Beings in nature act for the sake of an end ( modus ponens , P1, P2).
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P3. If beings in nature act for the sake of an end, then beings in nature are
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directed by something that has cognition and intelligence.
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C2. Beings in nature are directed by something that has cognition and
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intelligence ( modus ponens , C1, P3).
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C3. We call that director of unthinking things β God β (defi nition).
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2
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The Contingency
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Cosmological Argument
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Mark T. Nelson
|
The Contingency Argument is a version of the cosmological argument for
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the existence of God, proposed by Samuel Clarke (1675 β 1729) and rescued
|
from obscurity by William Rowe (b. 1931). The cosmological argument is
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not, in fact, a single argument but a family of arguments that attempt to
|
prove, or at least render plausible, the existence of God based on the existence
|
of the cosmos. Typically, these arguments have two stages: the fi rst
|
arguing from the existence of the cosmos to the existence of a necessary
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being or fi rst cause of this cosmos; the second arguing that this necessary
|
being or fi rst cause is God. Regarding the fi rst stage of the argument, scholars
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sometimes distinguish between two versions: those based on the idea
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that infi nite causal regresses do not exist and those not based on this idea.
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The fi rst three of Thomas Aquinas β (1224/5 β 74) β Five Ways β (#1) are
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examples of the former; Clarke β s contingency argument is an example of
|
the latter. Aquinas argues, for example, that an uncaused fi rst cause of
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Clarke , Samuel . A Demonstration of the Being and Attributes of God and
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Other Writings , edited by Enzio Vailati . Cambridge, UK : Cambridge
|
University Press , 1998 .
|
Rowe , William L. The Cosmological Argument . Princeton, NJ : Princeton
|
University Press , 1975 .
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___. Philosophy of Religion: An Introduction . Belmont, CA : Wadsworth ,
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1978 .
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Just the Arguments: 100 of the Most Important Arguments in Western Philosophy,
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First Edition. Edited by Michael Bruce and Steven Barbone.
|
Β© 2011 Blackwell Publishing Ltd. Published 2011 by Blackwell Publishing Ltd.
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The Contingency Cosmological Argument 19
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β sensible beings with effi cient causes β must exist, because, if it did not,
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there would be an infi nite regress of caused causes, but such infi nite causal
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