Tag Archives: Proofs of God’s existence

The Argument from Conscience

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In his book, Essay in Aid of a Grammar of Assent, St. John Henry Newman gives account of what might be described as a philosophy of faith.  He thought logical proofs for things like the existence of God, even when sound, were unconvincing for many people because they failed to garner the right kind of belief or assent.  In Newman’s thought, assent to a proposition or a set of propositions can be of two types: notional and real.  Notional assent was a simple assent to a proposition or set of propositions as true.  Real assent takes those same propositions and moves them from the head to the heart so that it becomes concrete and personal.  A man patterns his life around a real belief while a notional belief only remains in the back of his mind.  When it comes to questions of facts, notional assent is often sufficient.  But when it comes to important questions, such as the existence of God, an assent “following upon acts of inference, and other purely intellectual exercises” is never a sufficient impetus to conversion.  Instead Newman thinks that only real assent can act as a means of paving the way for the invasion of grace. 

In Newman’s mind, it is very difficult for all but the most erudite of philosophers to give real assent to the logical, deductive, metaphysical proofs of someone like St. Thomas and his Five Ways.  These proofs are not defective in any way, in fact they are quite the contrary, having stood the test of time by offering certain proof of the existence of God.  Instead Newman thinks real assent can only be given when a person’s experience leads them to a real encounter with God.  For Newman this means turning to inductive proofs that leads one to the probable conclusion that God exists.  Newman thinks he found a universal subjective experience that proves the existence of God in moral obligation.

Conscience as a Universal Experience

Newman’s Argument from Conscience as it has most often been called is one of the most effective arguments for the existence of God.  This is because it builds upon a universal experience.  We all judge our own actions according to whether they are right or wrong.  Once this judgement is made, we experience an obligation to do what is right and avoid what is wrong.  We do not always judge correctly, but we cannot avoid judging.  Likewise, the experience of guilt always accompanies when we don’t choose according to our judgement. 

Stepping outside of ourselves and looking at the universality of this experience we must admit that it is rather strange, especially considering that we appear to be both judge and judged.  We speak of conscience as a voice (or an echo of a voice) that is both imperative and constraining and it is like no other dictate in our experience.  Who, in judging himself, would ever declare guilt unless the voice of conscience somehow connects us to someone beyond ourselves?  When we look in the world, we find no source for this voice (more on this in a moment) and so Newman thinks that “If, as is the case, we feel responsibility, are ashamed, are frightened, at transgressing the voice of conscience, this implies that there is One to whom we are responsible, before whom we are ashamed, whose claims upon us we fear.”  Conscience then, according to Newman, is “a connecting principle between the creature and his Creator.”

Freud would tether us to a this-worldly explanation to keep us from leaping from conscience to God.  He explains guilt as “tension between the ego and the superego.”  The superego is something akin to conscience but it contains only faint echoes of human authorities, especially in our formative years.  This mechanistic explanation of guilt however does not explain the absoluteness with which the dictates of conscience are felt.  Rather than seeming like a transgression of a merely human authority, guilt is experienced as a breaking with the Absolute.  We feel guilty because we know we are guilty.

Why the Argument Works

Recalling to mind the context in which Newman presents the argument, we can see why it might be so convincing.  Conscience as the “aboriginal vicar of Christ” presents God not merely as a Voice out there, but One Who is close to me.  To grasp this though we must move from the notion of conscience as a source of guilt to conscience as spurring us on towards what is truly good.  It is not just the voice of Judge, but of a Father, that desires our well-being in everything.  If we but listen to its voice, conscience no longer acts like a referee keeping us from breaking rules but a coach teaching us to excel in the game of life.  As Newman puts it, “the gift of conscience raises a desire for what it does not itself fully supply. It inspires in them the idea of authoritative guidance, of a divine law; and the desire of possessing it in its fulness, not in mere fragmentary portions or indirect suggestion. It creates in them a thirst, an impatience, for the knowledge of that Unseen Lord, and Governor, and Judge, who as yet speaks to them only secretly, who whispers in their hearts, who tells them something, but not nearly so much as they wish and as they need” (Sermons preached on Various Occasions, Dispositions for Faith).

Presented then in this light, Newman’s Argument from Conscience paves the way not just for notional assent, but real assent.  As the person begins to listen more and more to his conscience, even if poorly formed at first, he develops a taste for the good.  That desire for the Good manifests itself in desiring only what is truly good and the soul begins to look for the moral maps that God provides through the Church.  Judging correctly more and more often, especially as they open themselves up to grace as a gift from the God Who has speaks to them louder and louder through an informed conscience.  The Argument from Conscience truly paves the way for conversion.   

Aquinas’ Fifth Way and Science

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While St. Thomas thought his First Way for proving the existence of God was “the most manifest” in his own day, it is the Fifth Way that is the most accessible to modern man.  Among the Five Ways, the Argument from Finality speaks most clearly modern man’s anti-metaphysical language.  In fact, one modern philosopher, Immanuel Kant, thought the Fifth Way oldest, clearest and the most accordant with the common reason of mankind.”  This is a powerful endorsement coming from the man who killed metaphysics and thought that there could be no objective proofs for God’s existence.  Given its accessibility therefore, it is instructive for us to examine it more closely.

The Argument from Finality is often mistakenly confused with its doppelganger, the Argument from Design.  St. Thomas’ proof is deductive and demonstrative while all the variations of the Intelligent Design Arguments are inductive and probabilistic.  The latter always leaves open the possibility, even if it is remote, that there is in fact no Intelligent Designer.  The Argument from Finality, while it too comes to the same conclusion, it proceeds in a logically sound manner leaving no doubt as to the existence of a Supreme Intelligence Who created and sustains all things in existence.

The two types of proofs are different in another important way.  Like the other Four Ways, St. Thomas’ proof is not really concerned with creation, but preservation.  It is concerned primarily with why things are the way they are right now.  In other words, it eliminates the possibility of deism that plagues all of the Intelligent Design-type arguments. 

The Argument

With that said, let us turn to St. Thomas’ rather brief argument directly.

The fifth way is taken from the governance of the world. We see that things which lack intelligence, such as natural bodies, act for an end, and this is evident from their acting always, or nearly always, in the same way, so as to obtain the best result. Hence it is plain that not fortuitously, but designedly, do they achieve their end.  Now whatever lacks intelligence cannot move towards an end, unless it be directed by some being endowed with knowledge and intelligence; as the arrow is shot to its mark by the archer. Therefore, some intelligent being exists by whom all natural things are directed to their end; and this being we call God.                   

  ST I, q.2 a.3

Proceeding from direct sense experience of the world, St. Thomas posits that since non-intelligent beings always (or at least when not impeded) act for an end, that is, act intelligently, there must be an intelligence “underwriting” their intelligent activity.

On the one hand this is common sense.  In fact, this is such a “given” that empirical science treats it as a first principle.  In order for science to proceed, it has to assume that the object of its study is intelligible.  Intelligibility requires intelligence.  Prediction requires predictability which requires a governing intelligence. 

But common sense, especially if it conflicts with a scientistic worldview, is not so common.  This makes philosophical inquiry necessary.  Framing the discussion within philosophical terms such as final causality makes the argument clearer.  Recall that a being can be explained with regard to its four causes.  The first two causes, the material cause, or what it is made out of, and the formal cause, or what makes the thing what it is, are intrinsic.  The other two, efficient and final causes, are extrinsic.  The efficient cause is the external cause that brings about the existence of a thing or a new way of existence.  This need not point to a First Cause (at least directly), but can refer to secondary causes.  The efficient cause of new oak tree is an acorn.  Looked at from the perspective of the acorn, we can say that the final cause of the acorn is to become an oak tree.  Given all the right conditions, it will develop into an oak tree and not anything else like a rosebush or a donkey.  This is always the case, so much so that we can say that the acorn acts towards this end and not another.

This connection between a thing acting as an efficient cause and fulfilling its own final cause is very important for modern science.  For modern science seeks to study efficient causality.  In developing predictive models for inert matter, it seeks to explain what causes changes in matter.  It does not concern itself so much with final causes, but they are always lurking in the background because of this inherent connection between the two extrinsic causes.  Even if it does not so much care about final causes, the modern scientist cannot act as if they don’t exist without simultaneously denying efficient causes.  It is like sawing off the branch you are sitting upon. 

Why There Must be a Final Cause

Because the acorn lacks intelligence, this inner directedness of the acorn to develop into an oak tree must have an extrinsic intelligent cause.  This becomes evident when we realize that Aquinas is talking, not about creation but preservation.  Why does the acorn, here and now, have as its end or telos, the oak tree?  And why must there be Intelligence for this to be the case?  In order for a final cause to be a true cause, then the effect must be in the cause.  To see how this works, we will draw an analogy with a human artifact, say a house.  The builder is the efficient cause of the house, but he is also what is called the exemplary cause.  It is his idea of what the house will look like that is the final cause.  That cause does not exist in the house, but in the mind of the builder.  So if we return to our acorn, we can ask where the final cause exists.  When we do, we realize that it exists as a divine idea.  Now we see why the final cause cannot exist without an intelligence.  It must first exist as an exemplar in order to be a true final cause.  It must exist not just at creation, but also in the here and now.   

Once this link between final causes and intelligence is made, we see why St. Thomas’ argument is true.  The fact that we observe anything that acts as an efficient cause is also acting upon its own final causality.  Because these things act towards ends, and not just any ends, but very specific ends, there must be an intelligence behind it.  “Therefore some intelligent being exists by whom all natural things are directed to their end; and this being we call God.”

Understanding what St. Thomas is really arguing for then becomes important because it differentiates it from other Intelligent Design arguments.  This demonstrative proof is protected from the “God in gaps” arguments that usually plague these types of arguments.  Sharing the same assumptions as modern science, it also makes it especially potent against those who reject God based on scientism.

Arguing for God’s Existence Through the Degrees of Being

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According to the First Vatican Council, it is an article of Faith that the existence of God can be proven using reason alone.  This declaration shows just how much faith the Church has in reason and philosophy.  It is an endorsement for the metaphysical endowment that God has given to man in the form of his own intellect.  The timing of the Vatican Council’s declaration is not accidental; reading the signs of the times almost 150 years ago, the Council Fathers saw that faith in reason was in decline and so the Holy Spirit thought it necessary to remind us of our metaphysical prowess.  Their message remains a clarion call for us today.

Among the many proofs for the existence of God, the Church has given a special pride of place to the Five Ways of St. Thomas.  These proofs ably combine metaphysical thinking with common experience to lead us to back to God under five different attributes: the Unmoved Mover, the Uncaused Cause, the Necessary Being, the Most Perfect Being and the Orderly Governor of Creation.  This does not, mind you, replace what God has revealed, but instead acts like a preamble to faith or a preliminary motive of credibility that paves the way for the invasion of grace and true Faith.  These proofs have proven to be irrefutable.  Those who have tried have only shown themselves unable to understand them.  It is therefore vital that we be able to present these proofs in an intelligible manner.  In the past we have explained the First Way so that in this essay we will present what is the most metaphysical of the Five Ways, the Fourth Way, often called the Argument from Degrees of Being.

Before getting to the actual proof, it will be helpful to review the metaphysical principles that St. Thomas employs because the modern mind habitually assumes that all value judgments are subjective.  But objective reality is otherwise.  But in order to grasp this, we need to introduce the medieval concept of the Chain of Being.

The Chain of Being

In an egalitarian age that is unable to decipher between the value of man and beast, the Chain of Being might strike us as odd.  It posits that the world is not just a blob of different stuff or a random collection of atoms, but instead an ordered hierarchy of beings.  The ordering is not based upon subjective preferences, but upon objective standards.  A man’s best friend really does have more value than Man’s Best Friend; John is objectively more valuable than Fido. 

Merely saying so does not make it so however.  Instead we must look at why John is more valuable than Fido.  We say that one creature is greater than another when it has more perfections, that is more being.  A geranium has life and can grow and thus has more perfections than a Plymouth Rock.  Fido has life and the capacity to grow, but also the power of locomotion and sense knowledge.  John too has vegetative powers and sensitive powers of Fido, but also the power to reason.  John is more valuable than Fido because he has more perfections.  And because he has more perfections, he has more being and occupies a higher place in the Chain of Being.  We can say that John is objectively more valuable than Fido accusations of speciesism not withstanding.

It is better to be than not to be.  Put another way, a thing must exist before it can be good so that whatever has goodness must have being.  The reverse is also true: everything that has being also has some goodness.  This is the case because being and goodness are convertible meaning that we can examine being under the aspect of goodness. To be is good and to be more is to better.  Good is related to the perfection of being.

Being is not within a category, but instead transcends all categories because it contains all categories.  The same applies to goodness in that it transcends all categories because it applies to all of them.  This is why we refer to goodness, along with truth and beauty as transcendentals.  Truth is a transcendental because all being is in a sense knowable.  The more being a thing has, the more knowable it is (and the hard it is to truly know).  In that sense we can also say that a plant is more true than a rock.  Likewise with beauty which, in a certain sense, combines goodness and truth so that the objectively beautiful exhibits integrity, harmony and clarity.  To avoid repeating what has been said before, I point the reader to this link on beauty.

Aquinas’ Fourth Way

With our feet planted on this metaphysical foundation, we can now evaluate St. Thomas’ argument.

The fourth way is taken from the gradation to be found in things. Among beings there are some more and some less good, true, noble and the like. But “more” and “less” are predicated of different things, according as they resemble in their different ways something which is the maximum, as a thing is said to be hotter according as it more nearly resembles that which is hottest; so that there is something which is truest, something best, something noblest and, consequently, something which is uttermost being; for those things that are greatest in truth are greatest in being, as it is written in Metaph. ii. Now the maximum in any genus is the cause of all in that genus; as fire, which is the maximum heat, is the cause of all hot things. Therefore there must also be something which is to all beings the cause of their being, goodness, and every other perfection; and this we call God.

ST I, q.2, art. 3

St. Thomas begins by referring to the aforementioned Chain of Being.  What he then goes on to do is say that if we predicate a transcendental property to any being, then there must be “something which is truest, something best, something noblest and, consequently, something which is uttermost being.”  This might not be intuitive based on our foundation so we will spell it out more explicitly. 

Although creatures have various degrees of being, none of them are the cause of their own being.  Each creature is limited in their being by their nature or their essence and thus they must receive their existence from another (this is the First Way).  This cause of being cannot itself require a cause but instead must have maximal being, that is, it must be of their essence to exist.  This Being, we call God Who calls Himself “I AM”.

Meeting an Objection

It is worth looking at an objection because it helps to clarify the argument and illuminate St. Thomas’s genius.  It would be a misreading of the argument to assume that St. Thomas is saying that all things that exist in degrees must have a maximum.  He is partly to blame for this because of the example he used with respect to fire and heat.  Heat need not have an absolute maximum.  Treating it as simply an example of a closed system in which a fire is the source of all heat, makes the example more intelligible.  Many people, including theists, make this mistake.  But none make it with as much flair as Richard Dawkins did in his book The God Delusion when he said that “You might as well say, people vary in smelliness but we can make the comparison only by reference to a perfect maximum of conceivable smelliness.  Therefore, there must exist a pre-eminently peerless stinker.”

Dawkins’ cleverness stops at his example.  Unable to see anything without his scientistic glasses, he can only see the flaw in St. Thomas’ example and is unable to grasp the underlying logic.  A bad example does not invalidate the principle.  Dawkins and his kind do not grasp that the argument is not about beings in particular, but being itself.  St. Thomas is focused only on the transcendentals—” so that there is something which is truest, something best, something noblest and, consequently, something which is uttermost being; for those things that are greatest in truth are greatest in being”—and not on particular created things.  Those things that share or participate in a limited way of being, goodness, truth and beauty must be caused by a Being that is essentially and maximally good, true and beautiful.

The Problem of Evil and God’s Existence

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For anyone who has read either of St. Thomas Aquinas’ Summas, it is patently obvious that he took objections to the Catholic Faith seriously.  Put more precisely, he felt obligated to address serious objections fully.  So keen was his understanding that he often made his opponents’ arguments more precisely and succinctly than they can.  One can often learn more from the objections and their responses than from the substance of his response.  Christians of today could learn much from the Angelic Doctor in this regard, especially when it comes to the existence of God.  There are most certainly motives of credibility  that honest atheists must take seriously if they are genuinely interested in discovering the truth.  But these can often be overshadowed by what might be called “a motive of discredibility”, namely the problem of evil and suffering, that Christians must also take seriously.

When St. Thomas tackles the existence of God in the Summa Theologiae, he finds this to be the only real objection.  This was not to suggest that other objections don’t matter, but that they begin to fade away once this objection has received a sufficient answer.  St. Thomas articulates the objection like this: “It seems that God does not exist; because if one of two contraries be infinite, the other would be altogether destroyed. But the word ‘God’ means that He is infinite goodness. If, therefore, God existed, there would be no evil discoverable; but there is evil in the world. Therefore God does not exist” (ST I, q.2 art 3, obj. 1). 

The Dilemma of Suffering and Evil

Notice that the objector has set up what is essentially a dilemma revolving around God’s infinite goodness.  If God is omnibenevolent then evil cannot exist.  Many have added to this argument by suggesting that the problem is really a tri-lemma in that God could not be infinitely wise, good and powerful if evil exists.  Either he cannot stop the evil (omnipotence), wills the evil (omnibenevolence) or doesn’t know how to stop it (omnisapience). 

St. Thomas, in a certain sense, anticipates the expanded objection when he quotes St. Augustine who said “Since God is the highest good, He would not allow any evil to exist in His works, unless His omnipotence and goodness were such as to bring good even out of evil” and adds his own comment that, “This is part of the infinite goodness of God, that He should allow evil to exist, and out of it produce good” (ST I, q.2 art 3, ad. 1).

What St. Thomas doesn’t say, but that remains just beneath the surface of what he did, is that evil, once properly framed, actually presents an argument for God.  Evil in the metaphysical sense does not exist.  This does not mean it is not a reality or that it causes suffering in people, but this suffering is not a result of the evil per se, but of the deprivation of a good that should otherwise be there.  Blindness is a deprivation of the good of sight and therefore is an evil.  Moral evils like sins and vices are nothing but a lack of the moral good that should otherwise be in and flow from the human heart. 

This distinction, although well known, is important for two reasons.  First, it refutes any dualistic ontological explanations.  Second, and more closely related to our point, is the fact that when good comes from evil, it is always a creation ex nihilio.  Good that does come comes from absolutely nothing.  Only a being Who is all powerful can create out of nothing so that the problem of evil presents no difficulty to the principle of God’s omnipotence.   In fact, a God who allows evil and suffering and brings good out of it is more powerful than a God who simply erects a divine Stop Sign to stamp out any evil beforehand.

Neither does evil or suffering present a difficulty to God’s omnibenevolence.  Especially when we add the principle that God only allows evil to occur when it is the only manner in which a particular good can come about.  Certain goods such as self-sacrifice can only exist in a world in which evil and suffering are possible.  One could see that the world with evil and suffering in it actually manifests God’s goodness more than a world without it (if it didn’t He wouldn’t have allowed it that way). 

Christ Crucified and God’s Wisdom

Once we grasp the preceding two points we see that only a God Who is all-wise could navigate these waters.  And this is why it is Wisdom Incarnate Who ultimately “dwelt among us” in order to prove this point.  When Christ healed the man born blind, the disciples ask Him what the man (or his parents) did wrong to deserve this.  He tells them that his blindness and his healing was so that God’s goodness could be made manifest.  Christ did not alleviate the suffering of everyone He met.  He did not heal those who deserved it either.  He healed only those, like the man born blind, that would glorify God and be better off without it.  There were many people He didn’t heal, but that wasn’t because He didn’t have time or didn’t care.  He was consistently applying His principle.  Those who were left to suffer were glorifying God in their suffering and were better off because of it.  

Those who suffer know that the problem of evil is no mere intellectual problem.  But the Christian must proclaim that there is no mere intellectual solution.  The answer to evil and suffering is not a philosophical proof but Christ crucified.  Christ is the final answer to this problem, because in truth, only by way of participation in His Cross is God’s goodness made manifest to the individual person.  Through suffering and evil God brings the greatest Good, Himself.  Suffering becomes a treasure that never ceases to give a return on investment.  Rather than an obstacle it becomes a launching pad.  Christians who grasp this and live it out become the most effective argument against those who have yet to see it.