Aquinas' cosmological argument is convincing
-Aquinas is convincing because as he says in Way One, we can observe motion in universe, e.g. ball will not move unless I throw it
--> has to be a series of movers, but it can't go back to infinity
-as Aquinas notes in Way Two, we can observe cause & effect in the world, e.g. if the door swings open and a cat walks in, I will look to see why the door opened
--> needs to be an uncaused first cause that began this chain of effects
-as Aquinas argues in Way Three, we can observe things that are contingent and rely on other things to exist, e.g. rely on air, food and parents to exist.
--> w/o these things, would cease to exist
-from observations, we can infer there must be a 1st mover, causer and necessary being that we could call God
-Aquinas seeks not only to explain how the universe exists but why