Showing posts with label metaphysics. Show all posts
Showing posts with label metaphysics. Show all posts

Sunday, June 8, 2014

The Philosophy of Thomas Aquinas: Part 8: Aquinas’s Metaphysics Part 2

I tried this with the part 1 of this lecture, but it didn't seem to shorten it at all!  I used the the text of the lecture and just commented on what I thought interesting.  Too much of it seemed important and the entry ended up much longer than I wanted.  So here goes part 2.

Here lies an apparent contradiction how is there unity in the diversity of the universe.  Even the word bespeaks of the contradiction, uni and diverse share roots with universe.  Parmenides denied one half of the apparent paradox, manyness.  This eliminates change as well because change is just a manyness in time, before and after.  He was a monist/pantheist everything is one god, the universe, everything because there is only one thing.  The direct opposite can be found in Heraclitus he denied any permanence, saying that all reality was like a river that you could never step into twice.  Plato resolved the problem by distinguishing two worlds, matter where there is manyness and the world of the forms where there was unity.  Aristotle joined Plato’s two worlds with substance being matter and form together.

Aquinas commented on the error of Parmenides and other monists with this:
“They fell into error because they dealt with being as though it were a univocal concept and an essence . . . this, however, cannot be done, for being is analogous . . . Parmenides argues as follows: outside of being there is nothing but nonbeing, and that which is not being is nothing. Since being is one, whatever is outside the one is nothing.’ From this argument of his it is clear that Parmenides was thinking of the concept of being, which appears always to be one and the same, and univocal, for it is unthinkable that something be added to the concept of being so that one concept of being be distinguished from another. For that which would be added to being must necessarily be something outside of and distinct from being. But the only thing outside of or extraneous to being is nonbeing or nothing. Hence it appears that the notion of being cannot be modified, cannot be anything but one, unique, and univocal.”
If there is only one thing, individuality is an illusion.  However, radical pluralism is nominalism: it denies universal ideas existence, and reduces them to mere words.  But, the evidence of our senses shows us both oneness and manyness.  Any good philosophy has to account for all possibilities, not ignore what we don't like or want to understand.

As Professor Kreeft says, "Aquinas explains the oneness of beings by the fact that they all share the act of existence, which is itself one and the same simple act.  But beings are different because this act of existence is received into many different essences."

I also like this quote, "Aquinas calls God the pure act of existence unlimited by any finite essence."

This is not to reduce God to a philosophical abstraction, just a way of talking about God that makes sense.  This does not change how God is the God of Abraham, Isaac etc.  This isn't about just philosophy, it's about the real world as well.

Everything that is real shares a kinship in the act of existence.  And, as God is the infinite pure act of existence this is one way in which God is omnipresent.  "God is existence itself, and existence itself is most intimately present at the heart of every being. Therefore God is most intimately present at the heart of every being."

So here we have it, God is everywhere but this is NOT pantheism, because it’s the act of existence and that transcendent fact that so is intimately present to everything.

Prof Kreeft goes into a long discussion about Angels and their differences from humans, but I'm not going to go into it here.

This is important to Aquinas' philosophy: "Like Aristotle, Aquinas defines change as the transition from potentiality to actuality, and he distinguishes two different kinds of change: accidental change and substantial or essential change. When I get older, smarter, or fatter, that’s only change in accidents, but when I die, that’s a change in essence."

Something remains the same in accidental changes, I am still me even though my entire body's cells have died and been replaced by new cells.

Each person also goes through essential change twice, when we are conceived and when we die.  Corpses are not people nor any kind of a person.

Again "following Aristotle," seems Aquinas was quite enamored with Aristotle's philosophy, "Aquinas distinguishes four causes, four kinds of causality: form and matter are the two intrinsic causes, the formal cause and the material cause; and the efficient and final causes are the two extrinsic causes."

This final point, which Aristotle and Aquinas call a "final cause," has fallen out of modern usage, possibly because it's not considered scientific.  All things act in definite ways.  Puppies always become dogs (assuming they don't die prematurely),  Birds fly, fish swim etc.  Puppies never become horses and rocks can't swim and never will.  This is final causality, things are directed to their specific ends.

As Aquinas argues in one of the five ways, everything that begins to exist needs an efficient cause to account for its existence.  If a thing itself were its own sufficient reason, it would have to exist always.  Either this sufficient reason is eternal or it would have to give existence to itself—which is impossible: nothing can give what it doesn't posses.

Again, sorry no picture!

Monday, June 2, 2014

The Philosophy of Thomas Aquinas: Part 8: Aquinas’s Metaphysics Part 1

Part 8 is the beginning of a series of lectures that follow a philosophical order rather than the Summa’s theological order. First is metaphysics and the following lectures will cover philosophical anthropology, epistemology, and ethics.  Metaphysics is foundational because it deals with what is, what is real and what reality even means.  Everything depends on metaphysics.  If one is a materialist then in philosophical anthropology one will have to deny that humans are essentially different from animals, the materialist denies the soul.  The materialist's epistemology will necessarily be a strict empiricism, without a distinction between immaterial, intellectual, rational knowledge and sense knowledge.  Lastly the materialist will concentrate on material goods only.

Some modern philosophers deny the legitimacy of metaphysics.  This is a materialist position, claiming that metaphysics has no distinctive subject because its subject falls outside the material on which the hard sciences and other specific realms of philosophy focus.

Sciences look at beings, but metaphysics looks at universal properties and laws and principles.  What it means to be a being.  As Prof Kreeft says of Heidegger, Western metaphysics after Plato, is guilty of a “forgetfulness of being” because they focused on what things are forgetting to think about the fact that they are.  Aquinas does consider this and the primacy of the act of existence is at the very center of his view of metaphysics.

Another objection to metaphysics is that it claims a kind of God’s-eye point of view.  Looking at the whole of being as if one could do so from outside, forgetting that we are only part of the whole. Aquinas quotes Aristotle that “philosophy begins in wonder.”  He notes that the wonderis not just about some certain beings but about being as a whole. The very fact that we can raise questions about being in general indicates that we are not merely part(s) of that whole.  We can only wonder about something if we are outside that something.  This idea reminds me of the Gödel Escher Bach book by Douglas Hofstadter.

Hobbesian or Humean empiricism, seems to ignore the very mind that’s doing the reducing of itself to “the scout for the senses.”  These views don't seem to account for the very self that’s asking the questions about oneself.  The argument that this goal of knowing what existence is like this.  The very fact that we have the desire to know what existence is like belies that it is knowable.  We wouldn't have a thirst for a knowledge that we couldn't possibly have would be absurd.

Then we have the principle of analogy.  The principle of analogy solves the problem of how we can know anything about God.  If we view God in human terms it's anthropomorphic: we drag God down to the human level, if the terms used for God apply to humanity.  However, if the terms are equivocal, they tell us nothing about God and we cannot know anything about God.  If the attributes of God are analogical, then we know some reflections of God, though pale and remote—we can know something of God.

The first task in analogical analysis is distinguishing between actual existence and merely mental existence.  Aquinas uses the act of existence to separate the two types of existence.  Actual existent things exist by themselves, but mentally existent things do not.  Things that only exist in the mind cannot give real existence to things because they cannot give what they do not themselves posses.

To Aquinas the “second act” is activity and the “first act” is that of existence.  Existence is always acting, always giving itself to something ontologically—self-giving is built into the very nature of existence.  A theological reason for this is that existence is rooted in the very nature of God as self-giving love, and everything else is in the analogical image of God.

This brings us to unity.  Unity is also analogical, I like the way Prof Kreeft puts this: "God is more one than a human soul; and a human person is more one than an animal, because we can meaningfully say 'I;' and an animal is more one than a plant. And even a plant is more one than a rock, or an atom, or a subatomic particle."

This lecture is too long and complicated to give it a fair treatment in one blog post, so I'll save the second half for another entry.  Unfortunately, I don't have a good picture to include with this entry.

Wednesday, April 9, 2014

Long Time no Writing

I've been busy so let me give a bit of background before I get into what I've been thinking about lately.

I went to Korea to study Korean at Kyunghee University (경회대학), and I had a great time.  I made new friends, ate good food, and got to practice Korean quite a bit.  My wife and kids came to visit Korea for a week after my class was finished and I got to be their tour-guide/interpreter.  It was tons of fun!  We went to a bunch of places, but where I felt I did the best job as guide/interpreter was at the planetarium/kids museum in Namsan Park (남산공원) I basically translated the entire planetarium show for my boys and I felt like I only missed a few things.  My wife loved the fabric market in Dongdaemun (동대문시장) though that was one of the hardest parts for me as an interpreter, because there are so many specialized terms for various types of fabrics and they're different dependant on what you're using it to make.  Fortunately Michelle can just tell by feel and look which fabrics she wanted, and I just had to help with prices and amounts.

After returning from that month-long trip I get back to work and I'm the busiest I've ever been with work.  As many of you know I work for the US Air Force and I fly on an airplane to do my job.  Well, we have multiple planes here now and we don't have nearly enough people to cover all the positions in all the planes so I've been flying much more than I've ever flown before (with the exception of being deployed to the Middle-east a few years back.  On top of being super busy with work I restarted online classes and I'm taking Theology 202 and Philosophy 201 through Liberty U Online.  It's a bit disappointing so far because Philosophy is one of my favorite topics and while I feel like I have a good grasp of the concepts taught so far (it's only an intro to Philosophy class), I have the lowest grade I've ever had in any of my online courses.  The thing that bothers me about the class (it's also true of my current Theology class) is that they don't seem to be really trying to test whether I understand the material through the quizzes.  Rather they seem to be testing whether or not I read the assigned chapters.  For example, there was a question on a recent quiz that asked very specifically what a particular text says is important in a certain situation.  All the possible selections were logical and would have worked in the particular situation but the answer was specifically what that author said.  One could (in fact my coworker said something to this effect) that the reading is the material to be tested and that's what the quiz is getting at.

To me it's more important to encourage critical thinking, not test to see if students can parrot back what an author has said on such and such a subject.  I'm glad that there's more than just the quizzes in the class (there are a few essays).  I feel that, in both theology and philosophy, as long as one can give reasonable defenses and logical support for one's statements they've learned the material.  The point of theology is to understand the different belief systems surrounding humans trying to understand God as He has revealed Himself.  So if a student can come up with a commonsense, logical and biblical defense for a particular belief then that student has succeeded in theology.  Same with philosophy though one can remove the biblical component.  That's not to say one cannot apply biblical beliefs to the study of philosophy and vice versa, rather that philosophical answers that contain biblical arguments are not considered basic philosophical arguments.  That's the philosophy of religion or theology, depending on what the presenter is arguing.

Which brings me to yesterday.  I had to work and this particular time I was teamed up with a coworker that completely disagrees with me in almost every aspect of life.  After some random(ish) conversation about our recent exploits we started talking about philosophy.  I opened up with attempting to quote this section of one of the texts for my philosophy class, from Hasker's Metaphysics; Constructing a World View and I hope the exact same can be said of me:
". . . [I am] a Christian who loves philosophy and would like to consider himself a philosopher; he is a philosopher who loves Jesus Christ and want to be known as a disciple. A Christian first, a philosopher second—but neither one at the expense of the other. The insights I have gained from my Christian faith and experience prove to be of immense value as I do my philosophy, even though I cannot appeal to biblical authority as the basis for a philosophical argument. And the results of philosophical study enhance Christian understanding in many different ways—some of them already hinted at, others yet to be shown."
I think every Christian interested in philosophy should be able to say something just like that!  Well, I wasn't able to capture the words of the quote, but I talked about the basic idea that I want to be a philosopher and a Christian and that neither one detracts from the other.  One of the things we touched on was not using biblical authority/quotes to make philosophical arguments.  He basically didn't seem to believe that so we launched into a long conversation about the beginning of the universe, meaning of life, source for morality, and other philosophical interests.

It seemed that he accepts Big Bang cosmology for what it is, and that chains of events cannot cause themselves, but insisted that the universe is actually eternal, we just can't see beyond that beginning.  So, we have an immeasurable, invisible, impersonal properties of physics that led to the Big Bang.  He gave the analogy that time and space is a wave that we're surfing on, we can look back and see the top of the wave but we can't see the other side, but we know it's there.  He claims that theism is irrational because theist postulate that God was the one that started the series of events called the universe at the Big Bang.  Implying that it's more reasonable to assume that there was just something before the Big Bang that caused it, we just cannot see or measure anything that might have happened before the Big Bang.  This is even though I defined the whole of the universe as a closed system encompassing all that actually exists, past present and future.  Basically, the way I understand his argument is pure materialism forcing him to ignore the evidence of the Big Bang and postulate that that must not actually have been the beginning.

He did does seem to understand that his position is a position of faith.  But, it doesn't make sense to me that he could consider his position to be the more logical.  We both arrive at the same beginning, and that something had to start the beginning but rather than accept that it must be something outside the something that exists, a timeless limitless being that started all the somethings, he insists that it's not really the beginning that there's an invisible immeasurable something before the beginning that became what we call the initial singularity from which the Big Bang originated.  I tried to use multiple tactics that show that that argument is enough to reach the conclusion that there is something out there that started all this, then when one takes that as an acceptable premise, the other arguments for God point to other characteristics.  That initial premise will only allow that that something is incredibly powerful (at least in the concept of power that we have), and that it must be limitless by all physical essences.  For example this entity must be timeless/eternal, because time is a function of the physical universe and this something is outside the physical universe.  There are other points but he refused to budge on the assertion that before the Big Bang was not really the beginning, that the universe is eternal.

I did "win" one point!  He asked what one had to do to be saved.  I don't know his full religious educational background except that he was once a Mormon.  He seemed genuinely surprised when I told him that one doesn't have to do anything to be saved.  I presented to "ABC" method of describing "attaining" salvation.  That is, Admit you've sinned (makes sense, since if you refuse that you don't need saving and wouldn't be asking these questions in the first place), Believe that Jesus Christ died on the cross to pay the penalty for your sins, and Choose to accept that payment for the penalty of your sins.  I hope this was able to dispel the common notion that Christianity is about doing certain things.

I've already shared this photo once but I really like this cafe (and apparently the previous gif was bothersome)