Something cannot come from nothing.
The cause of an idea must have at least as much formal reality as the idea has objective reality.
I have in me an idea of God. This idea has infinite objective reality.
I cannot be the cause of this idea, since I am not an infinite and perfect being. I don't have enough formal reality. Only an infinite and perfect being could cause such an idea.
So God — a being with infinite formal reality — must exist (and be the source of my idea of God).
An absolutely perfect being is a good, benevolent being.
So God is benevolent...
So God would not deceive me, and would not permit me to err without giving me a way to correct my errors.
My existence must have a cause.
The only possible ultimate causes are
b) my always having existed
c) my parents
d) something less perfect than God
4. Not a. If I had created myself, I would have made myself perfect.
5. Not b. This does not solve the problem. If I am a dependent being, I need to be continually sustained by another.
6. Not c. This