An argument that tries to prove God's
existence by looking at things in the universe
and showing that they have been designed
for some reason or purpose
Design qua regularity - 'design' relating to regularity
Archer regulating arrow
towards the target
AQUINAS
Five ways
Everything is directed to some goal
and follows natural laws, whether it is
intelligent or not. These natural laws
that direct all things set up by a thinking
being - God.
Design qua purpose - 'design' as relating to purpose
Designed for a purpose, chair.
PALEY
Aquinas - Way five
1. We see that everything in the natural world follows natural laws
even if not thinking, concious beings (trees)
When we drop something it falls
to earth - gravity
2. If things follow natural laws they tend to
do well, have some goal/purpose
3. If something is not conscious, thinking being, it
does not have any goal/purpose unless directed by
something else that thinks
Arrow directed by the archer
trees bear fruit and reproduce, reaching
a goal/purpose, yet not thinking
conscious beings
They cannot think about
what goal they have to try to
reach, as they have no
conscious
4. Everything in the natural
world that does not think
for itself heads towards its
goal/purpose through
direction by something that
does think
GOD!
If it did not then why do they appear to
reach a goal purpose for example, trees
bearing fruit and reproducing, and how
do they do well
Design qua regularity
Aquinas' argument in favour
Based on fact that nature
follows certain laws that
lead to certain results
Natural laws
examples of
'regularities of
sucession'
Events follow scientific laws that are
predictable, regular and unvarying.
Paley on design qua regularity
Evidence from astronomy and Newton's laws of
motion and gravity to prove design in the universe
Rotation of planets in solar
system - obey same universal
laws and hold orbits because of
gravity - not by chance
Concluded that external agent
must have imposed order on
universe as a whole
God!
An a posterior argument -
based on own experiences
Weaknesses in Aquinas' argument
Assumptions without
evidence to support
Assumes everything follows a
general law set down by designer
Could be argued that the
natural world is just the way it is,
no intrinsic need for a designer
Assumes things in
natural world have
some purpose/goal
Never provides examples to back
things up.
Assumes God is source of regularity
and natural laws
Assuming there is a God, but there might not
have to be
William Paley - Design qua purpose
Things in natural world are designed to fit purpose
Watch - telling the time.
The watch has a purpose - to tell
the time
The parts work together - they are
fit for a purpose
The parts are ordered - put together in
a certain way to make the watch
function.
If the parts were arranged differently the
watch would not function - not fulfil it's
purpose
Watch had a maker who must have
existed and put the watch together for
a purpose
If watch goes wrong it doesn't matter, the
point is that the watch's existence suggests
it was designed for a purpose
Evil in the world
Just as design of watch necessitates a
designer, so the complexity of the whole nature
necessitates a much greater designer
Complexity of nature far greater than any man
made mechanism, whole of nature needs a grand
designer - God
Watch - A watch is a machine
designed for the purpose of telling
the time THEREFORE The features of
the design in the watch suggest an
intelligent designer
Eye - The natural world shows evidence
of complex, purposeful design
THEREFORE the universe must have a
highly intelligent designer - God
Hume's rejections of Paley
Analogy limited in strength to points
of similarity between things being
compared
No similarity to watch and universe
Comparing to a manufactured object
implies several Gods rather than one
God, since they are made in several
stages by several people
Universe made on own accord rather
than made by hand
To discuss design of the
universe is illogical as
God is beyond human
understanding - could
never understand God
Equally possible that 'matter may
contain the spring of order originally
within itself, as well as mind does'
Any effects
observed may be
caused by wide
variety of causes.
This universe may be one attempt among a
number of others
There is apparent evidence of
design, could come as a result of
chaos