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Aristotle & the cosmological argument

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Aristotle's contributions to the Cosmological Argument for the existence of God
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Cosmological Argument For the existence of God
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Page 2: Aristotle & the cosmological argument

Learning Objectives (Topic)

• To understand how far the cosmological argument seeks to prove that God exists

• To understand why religious believers argue that the cosmological argument demonstrates that it is reasonable to believe in God

• To assess the strengths and weaknesses of the cosmological argument in order to evaluate it as an argument to support religious faith

Page 3: Aristotle & the cosmological argument

Learning Objectives (Today)

After this lesson, you should be able to :

• Define what the cosmological argument is

• Explain the main objectives of the cosmological argument and how it seeks to prove the existence of God

• Outline Aristotle’s concept of the Prime Mover

• Compare Aristotle’s Prime Mover with the God of Classical Theism

Page 5: Aristotle & the cosmological argument

Seeks to answer…

•How did the universe begin?

•Why was the universe created?

•Who created the universe?

Page 6: Aristotle & the cosmological argument

Overview…

• Also known as the First Cause Argument

• Derives the conclusion that God exists from an ‘a posteriori’ premise

• A posteriori = an argument based on the idea that things can be proved based on experience.

Page 7: Aristotle & the cosmological argument

Overview

• Starting point = observation of our world

• Seeks to prove that the universe and all that is in it has a cause and that cause is God.

‘In the beginning God created the Heavens

and the Earth.’

Genesis 1:1

Page 10: Aristotle & the cosmological argument

Overview

• Supports the existence of the God of classical theism who has necessary existence.

• God of Classical theism = - Eternal and separate from the universe - Created, and is outside, time and space - Only one - immutable (unchanging), omnipotent (all-powerful) and omniscient (all-knowing)

• Necessary existence = does not depend on anything to exist

Page 11: Aristotle & the cosmological argument

Aristotle and the Prime Mover• Greek philosopher (384 – 322 BC)• Believed that all movement depends on

their being a mover

• There is a ‘common source’ of all substance;

• In other words something/someone that was responsible for the beginning of everything.

• There must have been an ‘unmoved mover’ to begin the chain of causes and effects

Page 12: Aristotle & the cosmological argument

Aristotle …

• Argued that this source is an eternal substance, which exists necessarily and is immune to change, decay and death.

• Without the unmoved mover, nothing would have come into existence, this unmoved mover Aristotle calls the Prime Mover.

• The Prime Mover causes the movement of other things; not as an efficient cause, but as a final cause.

• In other words, the prime mover does not start off the movement by giving it some kind of push, but is the purpose, the teleos, of the movement.

Page 13: Aristotle & the cosmological argument

Important definitions• Efficient cause - a cause that is capable of performing an action and

bringing about the desired result

• E.g. a table and a carpenteror a boy and a Father.

• Final cause - the reason for something to brought about.

• E.g. a seed turning into an adult plantOr a sailing boat to sail

• Teleology - the philosophical explanation of phenomena by the purpose they serve, rather than the causes believed to be behind them.

Page 14: Aristotle & the cosmological argument

Aristotle, God and Attraction

• This is important for Aristotle, because he thought that an efficient cause, giving a push, would be affected itself by the act of pushing.

• The Prime Mover causes things to move by attraction in much the same way that a saucer of milk attracts a cat.• The milk attracts the cat but cannot be said to be

changed in the process!

Page 15: Aristotle & the cosmological argument

Aristotle’s conclusion

• The Prime Mover is Perfect, the universe desires to be so as well and is therefore attracted to the Prime Mover.

• For Aristotle the Prime Mover is GOD.

Page 16: Aristotle & the cosmological argument

However…• Aristotle was a deist• He didn’t believe God watched over the earth or should be

worshipped.• God is supremely perfect• Therefore, would have no interest at all in the universe.• The universe is in space and time, but God is outside space

and time.• God is supremely happy because God contemplates himself.• Aristotle considered contemplation

to be the highest end.

Page 17: Aristotle & the cosmological argument

TASK

List the similarities and differences between Aristotle’s

Prime Mover and the God of classical theism.


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