43
The Cosmological Argument Saturday, November 30, 19

The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

  • Upload
    others

  • View
    7

  • Download
    0

Embed Size (px)

Citation preview

Page 1: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

The Cosmological Argument

Saturday, November 30, 19

Page 2: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

God?

Saturday, November 30, 19

Page 3: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Saturday, November 30, 19

Page 4: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Classical Theism

Classical conception of God: God is

Omnipotent: all-powerful

Omnipresent: everywhere

Omniscient: all-knowing

Eternal: everlasting

Transcendent: beyond the world

Compassionate: caring

Saturday, November 30, 19

Page 5: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Dissident conceptions

Via negativa-- the “negative way”-- We can know only what God is not

Deism: God created the world, but has no further interaction with it; no miracles

Pantheism

God is everything

Panentheism

God includes everything

Saturday, November 30, 19

Page 6: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

GodA Posteriori Arguments

Saturday, November 30, 19

Page 7: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Saturday, November 30, 19

Page 8: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

The Cosmological Argument

•Aristotle: God is the prime mover of the universe

•Aquinas: God is the first cause

•Avicenna: God is the Necessary Being

Saturday, November 30, 19

Page 9: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Nyaya-Vaisesika Argument

•The earth is an effect (like a pot)

• Therefore, it has a cause

Saturday, November 30, 19

Page 10: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Aquinas’s Argument

•“The second way is based on the nature of causation. In the observable world, causes are to be found ordered in series; we never observe, or even could observe, something causing itself, for this would mean it preceded itself, and this is impossible.”

Saturday, November 30, 19

Page 11: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Aquinas’s Argument

• “Such a series of causes, however, must stop somewhere.

• For in all series of causes, an earlier member causes an intermediate, and the intermediate a last (whether the intermediate be one or many).

• If you eliminate a cause you also eliminate its effects.

• Therefore there can be neither a last nor an intermediate cause unless there is a first.

• But if the series of causes goes on to infinity, and there is no first cause, there would be neither intermediate causes nor a final effect, which is patently false.”

Saturday, November 30, 19

Page 12: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Aquinas’s Argument

•“It is therefore necessary to posit a first cause, which all call 'God'.”

Saturday, November 30, 19

Page 13: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Aquinas’s Argument

•Let a be the current state of the world

• It was caused, as was its cause, etc.

• . . . <— e <— d <— c <— b <— a

•This can’t go on to infinity, or we’d never have reached a

• So, there must be a first cause, God

•God <— . . . <— c <— b <— a

Saturday, November 30, 19

Page 14: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Aquinas and Agrippa

•We’ve seen similar argument patterns in epistemology and metaphysics

• Start with a binary relation—justification, or, here, causation

• Transitivity: A causes B, B causes C ==> A causes C

• Seriality: For every B, there is an A that causes it

• Irreflexivity: Nothing causes itself

•All models of this relation are infinite!

Saturday, November 30, 19

Page 15: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Turtles All the Way Down

Saturday, November 30, 19

Page 16: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Aquinas’s Argument

• Issues:

•Why can’t this go on to infinity? What’s the argument against a backwards infinite chain? . . . <— e <— d <— c <— b <— a

• Suppose there is a first cause. Why call it God?

Saturday, November 30, 19

Page 17: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Avicenna (980-1037)

• ... there is in being a being which has no reason for its being.

• ...that which is contingent cannot enter upon being except for some reason which sways the scales in favour of its being and against its not-being.

• If the reason is also contingent, there is then a chain of contingents linked one to the other, and there is no being at all;

• for this being which is the subject of our hypothesis cannot enter into being so long as it is not preceded by an infinite succession of beings, which is absurd.

• Therefore contingent beings end in a Necessary Being.

Saturday, November 30, 19

Page 18: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Avicenna• Something has a reason for its existence iff it is contingent

• Suppose everything were contingent

• There would be one linked to another in a chain infinitely long

• But then infinitely many beings would have had to occur before any given one could come into existence

• Therefore, nothing would exist

• So, something is necessary, having no reason for its being

Saturday, November 30, 19

Page 19: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Two Necessary Beings?• Suppose there were two

• The distinction between them would have to be essential or accidental

• But accidents are contingent

• If the distinction were accidental, one or both would be contingent

• If it's essential, they are compounds, and thus caused, so, contingent

Saturday, November 30, 19

Page 20: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Al-Ghazali (1058-1111)

• The cosmological argument depends on the impossibility of a backwards infinite chain of causes

• But why is that impossible?

Saturday, November 30, 19

Page 21: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Al-Ghazali• Argument would have to be a priori or a posteriori

• It can't be a priori, for there's no contradiction in the idea

• Can it be a posteriori?

• No---the necessary being could just be the backwards infinite causal series, made up of contingent beings!

• . . . . <— e <— d <— c <— b <— a

Saturday, November 30, 19

Page 22: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Averroes (1126-1198)

•There are two kinds of agent:

• (1) [Causation] the agent to which the object which proceeds from it is only attached during the process of its becoming; once this process is finished, the object is not any more in need of it—for instance, the coming into existence of a house through the builder;

• (2) [Dependence] the agent from which nothing proceeds but an act which has no other existence than its dependence on it.

Saturday, November 30, 19

Page 23: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Averroes

• We need to distinguish two sense of causal dependence

• Efficient cause: builder to house

• Dependence: act and object are inseparable

• Let's call that inseparable dependence grounding

Saturday, November 30, 19

Page 24: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Averroes

•Al-Ghazali is right about efficient causation

•The being without an efficient cause could just be the total chain

•But the argument works for inseparable dependence, that is, grounding

Saturday, November 30, 19

Page 25: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Averroes• . . . . <— e <— d <— c <— b <— a

|G1

|G2

|G3

|....

Saturday, November 30, 19

Page 26: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Averroes

•There could not be an infinite descending grounding series

•Could the ungrounded thing just be the descending series?

•No: an infinite descending grounding series couldn't ground anything

Saturday, November 30, 19

Page 27: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Averroes• . . . . <— e <— d <— c <— b <— a

|G1

|G2

|G3

|...

GodSaturday, November 30, 19

Page 28: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Gottfried Wilhelm Leibniz (1646–1716)

Saturday, November 30, 19

Page 29: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

•Principle of Sufficient Reason: “Nothing happens without a sufficient reason.”

• So the universe— the whole series of contingent causes— must have a sufficient reason for its existence:

• Something which is its own sufficient reason for existing: God

Principle of Sufficient Reason

Saturday, November 30, 19

Page 30: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

• Every contingent fact has an explanation.

• There is a contingent fact that includes all other contingent facts.

• Therefore, there is an explanation of this fact.

• This explanation must involve a necessary being.

• This necessary being is God.

Leibniz’s Argument

Saturday, November 30, 19

Page 31: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Issues

•Why can’t there be an infinite regress of grounds? Because: Turtles all the way down don’t ground anything.

•Why call the “something, I know not what” at the bottom God? Because, the ultimate ground is self-grounding, is its own sufficient reason for existing. Nothing other than God could be like that.

Saturday, November 30, 19

Page 32: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Paul (5? – 67?)

Saturday, November 30, 19

Page 33: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Saturday, November 30, 19

Page 34: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Paul’s Argument from the Part

•1. Something is natural iff the natural world includes it.

• 2. Something is natural iff it is not natural.

• 3. Everything includes itself.

• 4. Nothing natural explains itself.

• 5. If one natural thing includes another, something can explain the first only if it also explains the second.

• 6. Everything natural has an explanation.

• 7. Therefore, the natural world has a supernatural explanation.

Saturday, November 30, 19

Page 35: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

The Natural World

TranscendentCause

Saturday, November 30, 19

Page 36: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Saturday, November 30, 19

Page 37: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Causes

•Paul seems to apply Aristotle’s four causes to get different versions of the argument

• The natural world has

• a transcendent efficient cause, a Creator;

• a transcendent formal cause, the Logos;

• and a transcendent final cause, toward which it is directed.

Saturday, November 30, 19

Page 38: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Four Causes

Saturday, November 30, 19

Page 39: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Four Causes of a House

•Efficient Cause:

• Final Cause:

• Formal Cause:

•Material Cause:

Saturday, November 30, 19

Page 40: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Four Causes of a House

Saturday, November 30, 19

Page 41: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Four Causes of the Universe

Saturday, November 30, 19

Page 42: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

Four Causes of the Universe

Saturday, November 30, 19

Page 43: The Cosmological Argument - Daniel Bonevacphilosophical.space/philosophy/Cosmological.pdfThe Cosmological Argument •Aristotle: God is the prime mover of the universe •Aquinas:

One God?

•Why think these are the same being?

• It’s the simplest, most ontologically parsimonious explanation

•Argument from independence: if there are many gods, they depend on one another to achieve their aims. But God is independent, not needing anything or anyone else.

Saturday, November 30, 19