The Cosmological Argument
The Cosmological Argument attempts to prove that God exists by showing
that there cannot be an infinite number of regressions of causes to
things that exist. It states that there must be a final
uncaused-cause of all things. This uncaused-cause is asserted to be
The Cosmological Argument takes several forms but is basically
1. Things exist.
2. It is possible for those things to not exist.
3. Whatever has the possibility of non existence, yet exists, has
been caused to exist.
A. Something cannot bring itself into existence since it must exist to
bring itself into existence which is illogical.
4. There cannot be an infinite number of causes to bring something
. Because an infinite regression of causes ultimately has no initial
cause which means there is no cause of existence.
A. Since the universe exists, it must have a cause.
5. Therefore, there must be an uncaused cause of all things.
6. The uncaused cause must be God.
Thomas Aquinas (1224-1274) had a version of the Cosmological Argument
called the Argument from Motion. He stated that things in motion
could not have brought themselves into motion but must be caused to
move. There cannot be an infinite regression of movers. Therefore,
there must be an Unmoved Mover. This Unmoved Mover is God.
Strengths of the argument
The strengths of the Cosmological Argument lie in both its simplicity
and easily comprehensible concept that there cannot be an infinite
number of causes to an event. Some arguments for God's existence
require more thought and training in terms and concepts, but this
argument is basic and simple. Also, it is perfectly logical to assert
that objects do not bring themselves into existence and must,
therefore, have causes.
Weaknesses of the argument
One of the weaknesses of the argument is that if all things need a
cause to exist, then God Himself must also, by definition, need a
cause to exist. But this only pushes causation back and implies that
there must be an infinite number of causes which cannot be. This is
Also, by definition, God is uncaused.
The Cosmological Argument
The basic notion of cosmological arguments is that the world and
everything in it is dependent on something other than itself for its
existence. In other word's, despite the fact that the world seems to
be self-perpetuating one needs to consider the source of all that
Although the cosmological argument was famously expressed in three of
Thomas Aquinas' Five Ways (rational arguments for the existence of
God), there is an early form of it in the writings of Plato (see
Plato's Cosmological Argument), and the argument is also largely