Aquinas First Way

St. Thomas Aquinas’s first cosmological argument, the prime mover, defines things in the world as being either in a state of potentiality or in a state of actuality. Those things that are in potentiality are things that have the capability of being reduced to another form. Such as a boy is potentially a man, or tree is potentially a house. Things that are in a state of actuality are things that are currently reaching their potential; such as that boy becoming a man, or that tree becoming that house. Aquinas observed that all things in a state of actuality had to have been put into that state by something that was already in actuality. In thinking about this he concluded that there would have to be an infinite regress of actual things making potential things actual. He concluded that this would be impossible because given that, there would be no first mover. He instead, postulated that there must be a first mover. A being that never had potential but only has existed in a state of infinite actuality. That what we call God.

states that all wars are sinful, but if it is justified it is not a sin; however, I feel that just because one has authority over others, this shouldn't

Aquinas argued the existence of God with five main points. Aquinas began by saying that nothing can be a cause of itself; rather every event was caused by some prior event. Therefore event A causes event B that leads to event C and so forth. He believed in this cause and effect relationship but believed that there must be a first cause as a starting point. When contemplating this starting point Aquinas rejected the possibility of an infinite series of events. This means that the universe has not existed forever and there must have been something from which every single event stems. There must be an uncaused first cause, which Aquinas concluded to be God. The first cause is called the unmoved mover. The unmoved mover is what set all other events and beings in motion.

     Aquinas’ third way argument states that there has to be something that must exist, which is most likely God. He starts his argument by saying not everything must exist, because things are born and die every single day. By stating this we can jump to the conclusion that if everything need not exist then there would have been a time where there was nothing. But, he goes on, if there was a time when there was nothing, then nothing would exist even today, because something cannot come from nothing. However, our observations tell us that something does exist, therefore there is something that must exist, and Aquinas says that something is God.

‘Something rather than nothing refers to’ the cosmological argument for the existence of God claiming that all things in nature; ‘something’ are dependent on something else for their existence. As Lucretius puts it in his first book De Rerum Natura, “by observing nature and her laws…her first principle: that nothing’s brought forth by any supernatural power out of naught” hence we arrive at nihil fit ex nihilo ‘nothing comes from nothing’

As discussed in class, modern scientific research provides alternatives to Aquinas’s presumed necessities. An infinite series of causes no longer seems impossible. This research disproves Aquinas 's third premise (P3), and his argument for God as the first cause is consequently unnecessary. Furthermore, the fourth premise still has a logical gap between the first cause and God. Aquinas offers no explanation as to why the first cause must be God or a supernatural being at all. The first cause may just as easily be a spontaneous event, or a first cause may not exist at all in an infinite universal cycle.

Thomas Aquinas’ five ways are his arguments of the five proofs that God exists in some form, these five ways have standard abjections. The arguments are named as follows: argument from motion, arguments from causation, arguments from contingency, argument from gradations of goodness, and the argument of governance. These are Aquinas’ theories of why things change, whatever is changing is being changed by something else.

vi. Saint Aquinas attempted to explain God as the first mover, and that all things followed after God’s initial cause. But also, It was Adam the first man, who chose to bring sin into the world, God did not cause that to be, and neither did anything outside of Adam, and therefore it was Adam’s self determinant choice to sin against the laws of God.

Therefore, it is more believable that the universe had a beginning and a personal creator. The third of Aquinas' ways is the argument of contingency. The world consists of contingent items- items that have a property are items referred to as 'being.' These items are generated and perish; they have a beginning and an end.

In The Five Ways, from Summa Theologica, Thomas Aquinas gives the five ways in which an individual can prove that there is a God. In his arguments, Aquinas uses a posteriori and inductive arguments to help prove the existence of God. An a posteriori argument is an argument that uses statements that you cannot know through pure reason like the statement dogs are descendants of wolves. In contrast, an a priori argument is an argument that consist of statements you can know through pure reason like 2 is the square root of 4. Likewise, an inductive argument is an argument that is an attempt to provide premises that make likely the truth of the conclusion, which is used in Aquinas argument. In contrast, a deductive argument is an argument that attempts to provide premises that guarantee the truth of the conclusion.

He believed in natural theology and thought that man could not understand God without God's assistance and guidance. The foundations of his proofs of God’s existence were based on his five basic beliefs about God. Aquinas wrote that God was: 1) simple as in having no parts, 2) perfect therefore lacking nothing, 3) infinite having no beginning and no end, 4) immutable as in never changing, and 5) one in essence and existence.

In his work Meditations on First Philosophy, published in 1641, René Descartes sets out to establish a set of indubitable truths for the sciences. He begins by discarding all of his beliefs, then works to rebuild his beliefs based on careful thought. Descartes clearly states this goal, saying in the First Meditation, “I will work my way up… I will accomplish this by putting aside everything that admits of the least doubt” (I, 17). He is able to establish his own existence, but struggles to move beyond his internal thoughts to discuss external objects. Descartes decides that the Christian God is the bridge he needs to escape the confines of his own mind, and argues for the existence of God in the Third Meditation in order to move on to discussing the physical world. In this paper I will argue that Descartes’ rationalistic project would have been improved without an appeal to the Christian God, although I will also argue that Descartes thinks this appeal is necessary.

Thomas Aquinas theorized five different logical arguments to prove the existence of God utilizing scientific hypotheses and basic assumptions of nature. In the fifth of his famous “Five Ways”, Aquinas sets forth the assumption that all natural bodies move toward an end. Since bodies are constantly moving in the best way possible to achieve that end, the path must be designed. God, of course, is the ultimate designer of the universe.

1.) Thomas Aquinas believes that humans are born with a clean slate in a state of potency and acquire knowledge through sense experiences by abstraction of the phantasms. His view on how man acquires knowledge rejects Plato’s theory that humans are born with innate species. Along with Plato’s theory of humans understanding corporeal things through innate species, Aquinas also rejects Plato’s theory that in being born with innate species, humans spend their lives recollecting their knowledge.

Here Aquinas argues that everything that happens is the cause of something, but nothing can cause itself. If we trace back a cause all the way back to the beginning of the world, it could not have caused itself. Therefore, God must have been the first cause. Aquinas’ third proof is the Argument from Contingency. We see that everything here on earth is finite. People die, empires fall. All things must come to an end. That means things had to have a beginning where nothing was in existence yet. How did things come into existence? God. Aquinas’s 4th argument is the Argument of Degrees. Here we judge things to be a certain degree of good or bad. But what are we comparing that to? If they have a certain degree of good and bad, then what is the greatest degree of good? And that must be God. Aquinas’s final argument is his Argument from Design. Perhaps one of his strongest arguments Aquinas says that there must be an intelligent designer behind everything. Random objects don’t have any brains to act the way they do. But they are directed in the way they act by God.