Explain Thomas aquinas’ design argument
• The teleological argument (a.k.a Design Argument) is concerned with the reason why the world functions in an orderly manner.
• Design arguments were used by Aquinas in his ‘Five Ways’, which were five ways of demonstrating the existence of God through inductive argument, based on observation and evidence.
He views the knowledge of God can be reached in two different ways:
o Through revelations, where God chooses to reveal the truth to people.
o The other is through human reason (which Aquinas thought was given to us by God for this very purpose). He explained if we apply reason to the evidence that we see around us, we can reach valuable truths.
• Aquinas presented ‘Five Ways’ of showing that God exists as he was sure that while the existence of God isn’t self-evident, it could be demonstrated with logical thought. He wrote about these Five Ways in his book Summa Thelogica.
• Aquinas said that nature seems to have an order and a purpose to it. Objects without innate intelligence work in a way that achieves the best possible result as they are designed that way. He used the analogy of an arrow, the reason the arrow reaches its target is that an archer directs it there.
• Because objects in our world work defiantly (as they were designed that way) it proves there is a God as he is the intelligent designer behind the world.
• For a watch, if any of the parts had been shaped differently or put together in another order than the watch wouldn’t work. All the parts of the watch, he concluded, has been designed and assembled in the right order by a watchmaker for the purpose of keeping time.
Explain William Paley’s design argument
Explain David Hume’s design argument
Explain Aquinas’ cosmological argument
o Aquinas said: ‘nothing comes from nothing. The universe exists, so something must have made it. That can only be God’.
o The cosmological argument looks at the universe around us and seeks an explanation for its existence.
o Thomas Aquinas developed an argument that ancient Greeks used for the existence of God. He began in the natural world of the senses and reasoned form it, making this an a posteriori argument.
Explain Hume’s criticisms of Aquinas
o David Hume was an empiricist who considered Aquinas’ argument, starting with the existence of the universe. Whilst accepting the universe exists, Hume’s asked if it had to have a beginning.
o Just because everything in our world is governed by cause and effect, that doesn’t mean the universe had to have a cause. Could it not be infinite?
o Hume suggested maybe there wasn’t one Prime Mover, could there not be several acting together like a committee?
o Hume asked why the Prime Mover has to be identified with the Christian God, he suggested a world created by male and female gods who are born and who will die?
o Hume challenged the idea of cause and effect, saying that it might be the case that what we perceive as causation is simply statistical conjunction.
o E.g. a person goes up to somebody and pushes them over. What we see is a person walking up to another person and pushing them. We also see the second person fall over. Because we have seen such things before, we interpret the action to mean the effect of pushing is to cause another to fall over.
Explain Aquinas’ 3 ways of argument
What does Gottfried Leibniz say?
o Gottfried Leibniz raised the question: ‘why is there something rather than nothing?’ and ‘why anything does exists at all?’
o In order to address his question, he offered a form of the cosmological argument, which he based on his ‘Principle of sufficient reason’.
Explain Leibniz’s Principle of Sufficient Reason
According to the Principle of Sufficient Reason:
–If something exists, there must be a reason why that thing exists.
–If a statement is true, there must be a reason why that statement is true.
–If something happens, there must be a reason why that thing happens.
o Whether or not we know the reasons why something exists, or is true, or happens, there still must be a reason, known or unknown.
o Leibniz argued that it made no difference whether something was eternal or not- we still need a reason for it. If it exists eternally, we still need a reason for is eternal existence.
How persuasive are a posteriori arguments?
Can teleological arguments be defended against the challenge of ‘chance’?
Do cosmological arguments simply jump to the conclusion of a transcendent creator, without sufficient explanation?
Do arguments from observation present logical fallacies which can’t be overcome?