Analysis Of The Five Ways By Thomas Aquinas

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.

This argues that everything in this world has possibility to be and not to be.

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.

In the article, “The Five Ways,” from Summa Theologica, Thomas Aquinas argues whether God exists, which

Well unfortunately some believe their (omnipotent) God has all the answers and knows of every person’s next moves and what’s yet to come. I can somewhat agree with that but I don’t believe it is my duty to judge or prove the existence, and the all mighty power God has. I certainly am a believer of faith and that the existence of good and evil lies in all of us, regardless of the control God has over us. My opinion relates to how Aquinas believes that everyone’s consequences and endings they choose are because of the free choice God gives us all. As mentioned in the book, a great example that I find makes a perfect analogy is when he states, “He can create in a multitude of ways, No

Thomas Aquinas’ five ways prove that God exists in some form, his argument that God exists through motion is a sound theory that he created. There are objections

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.

Frederick Copleston was a priest, and historian of philosophy who supported Aquinas’ rejection of infinite regress. Copleston reformulated the argument by concentrating on contingency, which he discussed in depth during a radio debate with Bertrand Russell in 1947. Copleston, like Aquinas, argued that there are things in the universe which are contingent, for example, us – we would not have existed if our parents had not met. All things in the world are similar to this, nothing in the world is self-explanatory, and everything depends on something else for its existence. Therefore, we are forced to search for an external explanation. The explanation must lead us to a cause which is self explanatory, i.e. one which contains within itself, the reason for its own existence – a necessary being. The conclusion must be God. Copleston argues that if we don’t accept the existence of an ‘unmoved mover’, like Aquinas suggested, there is no explanation for the universe at all. Copleston believes the universe is gratuitous without a first cause, because without an explanation, nothing has meaning – “Everything is gratuitous. This garden, this city, and myself; when you suddenly realise it, it makes you feel sick and everything begins to drift… that’s nausea”.

The first part in which one can prove that there is a God is based on change. In the first part, Aquinas mentions that things change and that there has to be something which brings about that change, but at the same time is changeless. Aquinas states that “a thing in process of change cannot itself cause that same change; it cannot change itself” (Aquinas 45). For example, he gives an example about wood and fire. The wood is able to be hot but simply cannot make itself change without having an outside source that will cause it to become hot. The fire, that is naturally hot, will indeed make the wood hot and as a result, will change the wood.

As one of most valuable works on this topic one can name St. Thomas Aquinas' Summa Theologiae, in which he states that existence of God, can be demonstrated in five different ways.

St. Thomas' first proof is based on the argument of motion. By our natural senses, we know that the earth and the universe are always in motion. However for Aquinas, the term motion did not just mean physical motion but also change as in change from potential to actuality. He reasoned that all change is the result of a cause and as such nothing can move or change itself. He also noted that the sequence of motion cannot be traced back infinitely and so there must be a first mover who is unmovable and that being is God.

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.

For centuries The Five Ways, drawn from St. Thomas Aquinas’s Summa Theologica have been studied, scrutinized, and at the epicenter of heated debate.

St. Thomas Aquinas is a famous philosopher from the medieval period who believed there was a god. One of Aquinas significant works in philosophy was his argument that God exists. In Aquinas' argument, or also known as Summa Theologica, he uses five arguments to support the claim that God exist and four of them are cosmological argument. Cosmological arguments are arguments that try to reason that god exists because of the universe or cosmos leads to the conclusion that god exists. His first argument is the Argument From Motion. In the argument of motion Aquinas observed that we live in a world and universe that things are continuously moving, and he also noticed that to make something move something has to move or start it moving. To Aquinas this means that everything that is moving must have been moved by something or someone and there had to be a time when the thing wasn't moving. The mover for the beginning of everything in Aquinas' argument is God. The second argument is the Argument From Causation which is very similar to the Argument From Motion. Aquinas thoughts were that everything that is caused had to be caused by something else. Nothing can cause it's self so there must be an thing that is uncaused and to Aquinas that thing is God because it can't go back forever. The Third argument is The Argument From Contingency. Contingency is a future or thing that could have not existed and Aquinas believe that the world can't always be contingent because then it could have