St. Thomas Aquinas’ First Two Ways in Proving the Existence of God

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St. Thomas Aquinas’ First Two Ways in Proving the Existence of God

It is my view that God exists, and I think that Aquinas’ first two ways presents a

successful argument for the existence of God. No doubt, the arguments have weak points

which are subjected to criticism but nonetheless, in my opinion, these propositions by

Aquinas do indeed accomplish their purpose in establishing the existence of a Greatest

Conceivable Being that is the unmoved mover and uncaused cause. I believe that this

ultimate Being is unchanging and started the universe, time and all matter and concepts

of existence. In my view, this Being is what we understand to be God.

St. Thomas Aquinas recognized that there were some people who doubted the

existence of God because, to them, logic did not allow for or explain God’s existence. His

first two ways are two proofs based on logic and observation of nature in proving God’s

existence to those who could not accept or believe God on faith alone. Aquinas’ first way

is based on motion. He calls it the most obvious way. This first argument, the Argument

from Motion, tries to prove the existence of God as the first mover which is unmoved.

Now, it is certain as a matter of sense-observation that some things in this world are in

motion. Whatever is in motion, Aquinas states, is moved by something else. Aquinas then

defines one type of motion as the reduction of something from potentiality to actuality,

and says that nothing can make this movement except by something that is already in

actuality in the same respect as the first object is in potentiality. For example, something

which is actually hot, like fire, makes something which is potentially hot, like wood, to

be actually hot. In this way the fire moves and alters the wood. Now, it is not possible for

the same thing to be, at the same time and same respect, in actuality and in...