Ontology Archives



More Generally: Philosophy (558) » Metaphysics (205)
More Specifically: Abstract Objects (6) Events (1) Familiar Objects (15) Fictional Objects (2) Idealism/Phenomenalism (42) Materialism (4) Ontological Pluralism (1) Realism (6)

June 21, 2019

Pruss and Rasmussen on the Argument from Necessary Abstracta

Pruss and Rasmussen's seventh chapter puts forward an argument for the existence of a necessary concrete being from the existence of necessary abstracta. They connect this strategy with an argument of Leibniz's. The Leibnizian argument, usually known as the 'argument from necessary truths', is to some extent known in the contemporary literature, but it has not become part of the standard list of arguments for the existence of God. (For instance, it is not discussed in Jordan Howard Sobel's Logic and Theism or Graham Oppy's Arguing About Gods.) Leibniz himself always seems to run through this argument very fast, and...
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June 13, 2019

Introduction to Pruss and Rasmussen, Necessary Existence

One of my projects this summer is a review of Alexander Pruss and Joshua Rasmussen's Necessary Existence for American Catholic Philosophical Quarterly. I read the book for the first time a few months ago, but I'm now working through it more carefully in preparation for writing the review. I've often found it helpful in the past to write a blog post about each chapter of a book and then condense them into a review, and I'll be doing that here over the next couple of weeks. The project of the book is to investigate arguments for the claim that there...
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December 14, 2018

Ibn Sīnā and Descartes on the Nature of Body

Thus, a body is such an entity that, if one posits a longitude on it, another longitude will be found intersecting it at a right angle, and a third longitude of these two lengths will stand as a perpendicular on the point of the previous intersection. Whatever can be placed under these three magnitudes in the aforesaid manner and is also a substance is called a body ... But that which is in a body, such as length, width, and depth, is known to exist not in the form of the body, but as an accident to it. For instance,...
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September 15, 2018

Catharine Trotter Cockburn on Berkeley's Immaterialism

I rather think we have that idea [of space] before we have any of extension in general, or are capable of abstracting: Nor does the mind frame it to itself; it is an idea early obtruded upon by the senses, and unavoidably perceived by it, as something without itself. This is all the proof we have, that matter is any thing really existing without the mind; and if the translator [Edmund Law, translator of William King's Essay on the Origin of Evil] will not admit of this evidence in behalf of space, but require some other proof, that it is...
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May 18, 2018

Berkeley and Lokayata

Berkeley famously argues that "what is said of the absolute existence of unthinking things without any relation to their being perceived ... [is] perfectly unintelligible. Their esse is percipi, nor is it possible they should have any existence, out of the minds or thinking things which perceive them" (Principles, sect. 3). He aims to demonstrate this principle, he says, "In opposition to sceptics and atheists" (Three Dialogues, subtitle). As Berkeley saw it, human knowledge and traditional religion were under attack from 'freethinkers' and the root of this attack was the doctrine that real physical things must be something beyond or...
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April 24, 2017

Idealism and Christian Theology: Concluding Thoughts and Table of Posts

Having finished commenting on every chapter of Idealism and Christian Theology, allow me here to offer some concluding thoughts on the book and its aims and scope. First, some comments regarding scope. The title 'idealism and Christian theology' allows for a very wide scope. In the design of a volume like this, a judgment must be made about how broadly or narrowly the title is to be interpreted. Here, the title bears a relatively narrow interpretation in two respects, only one of which is explicit in the introduction. The explicit restriction of scope is that the volume considers only Berkeleian...
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April 12, 2017

Arcadi on Idealism and the Eucharist

Chapter 10 of Idealism and Christian Theology is "Idealism and Participating in the Body of Christ" by James Arcadi. This article is very clearly written and handles both philosophy and theology well. However, I have some lingering concerns about the position defended. Arcadi begins with an admirably clear account of the spectrum of Christian positions on the metaphysics of the Eucharist. (I note, in passing, that during the Reformation and the early modern period, this was one of the most divisive questions in Christian theology, and differences over this question were at least as important as difference in soteriology in...
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April 11, 2017

Tan on Edwards' Christology

Chapter 9 of Idealism and Christian Theology is "Jonathan Edwards Dynamic Idealism and Cosmic Christology" by Seng-Kong Tan. The article addresses the relevance of Edwards' idealism to his accounts of the two central mysteries of the Christian faith, the Trinity and the Incarnation. Whereas most of the articles in this volume are primarily philosophical and deal with Christian theological commitments only at a rather basic level, this essay dives deep into the theology. Anyone not steeped in the history of these doctrines is likely to find it difficult to follow. I found it quite challenging myself, and will here only...
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April 6, 2017

Crisp on Edwards on the Incarnation

Chapter 8 of Idealism and Christian Theology is "Jonathan Edwards, Idealism, and Christology" by Oliver Crisp. This is the second of the two previously published essays, having appeared in another edited volume in 2011. The first part of the essay provides an admirably clear overview of Edwards' distinctive metaphysical views, particularly as they relate to God and creation. Crisp then goes on to draw out some consequences for Christology and defend the orthodoxy of Edwards' position. Crisp enumerates 11 Edwardsian positions he takes to be relevant, but it seems to me that there are really just three that are of...
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April 1, 2017

Cortez on Edwards on the Resurrection

Chapter 7 of Idealism and Christian Theology is "Idealism and the Resurrection" by Marc Cortez. Like the preceding article by Hamilton, this is an excellent piece of work directly addressed to the central issues of this volume. Cortez begins by noting that idealism, from the perspective of Christian theology, faces the problem of explaining the reality and importance of the body, and a particular example of this is the claim that there will be a bodily resurrection in the eschaton. In this respect, Cortez observes, Jonathan Edwards is a particularly interesting case since he is an idealist but also places...
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March 30, 2017

Mark Hamilton on Idealism and Fallenness

Chapter 6 of Idealism and Christian Theology is "On the Corruption of the Body: A Theological Argument for Metaphysical Idealism" by S. Mark Hamilton. This is easily the best essay in the collection so far, and the most directly focused on the central issues the volume purports to address. Hamilton provides a carefully documented account of the ways in which mind-body dualism is presupposed by theologies of our post-lapsarian state of corruption in Reformed dogmatics from Calvin to the early 20th century. Jonathan Edwards, he shows, is an outlier with respect to this tradition. Hamilton enumerates a number of theological...
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March 27, 2017

Farris on Edwards on the Imago Dei

Chapter 5 of Idealism and Christian Theology is "Edwardsian Idealism, Imago Dei, and Contemporary Theology" by Joshua Farris. This is an interesting article that directly and constructively addresses one of the central theological issues raised by metaphysical idealism of the Berkeley/Edwards variety. However, I was left with some confusion about what the paper's overall lesson was meant to be. Farris frames the central question here as how, given Edwards' idealism, he can understand the imago dei doctrine in a way that does not devalue the body. Edwards is said to be drawing on but 'reconceiving' the prior tradition of Reformed...
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March 26, 2017

Yandell on Berkeley and Creation

The fourth chapter of Idealism and Christian Theology is "Berkeley, Realism, Idealism, and Creation" by Keith Yandell. This is an interesting paper on Berkeley which, unless I missed something, did not turn out to be about Christian theology at all. I say purposely that it did not turn out to be about Christian theology, because it sounds at the beginning as if it is going to be. Yandell begins by noting that Berkeley's position is rare among Christian thinkers (p. 73), and discussing a particular threat to Christianity from those who take the creation of matter to be impossible (p....
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March 18, 2017

Wessling on 'Idealistic Panentheism'

The third essay in Idealism and Christian Theology is "Idealistic Panentheism: Reflections on Jonathan Edwards's Account of the God-World Relation" by Jordan Wessling. The essay is avowedly not interpretive, but rather aims at an evaluation of a certain view in philosophical theology, dubbed 'idealistic panentheism,' which has been attributed to Edwards. This view takes the whole created world—including human minds—to be ideas in the mind of God. It is idealistic insofar as it takes reality to be fundamentally mental. It is panentheistic in a literal and straightforward sense: the created world exists in God's mind. However, it is not pantheistic...
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March 16, 2017

Wainwright on Berkeley and Edwards

The second essay in Idealism and Christian Theology is "Berkeley, Edwards, Idealism, and the Knowledge of God" by William J. Wainwright. The aim of this article is to explore and explain similarities between Berkeley and Edwards in terms of the religious and cultural context in which they wrote, particularly the threat of deism and freethinking to these (relatively) traditional religious thinkers. This is an extremely interesting project, and it is for the most part well-executed, though the brevity of a single paper necessitates glossing over certain details, leaving some points underdeveloped, and so forth. Wainwright's central contention, I take it,...
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March 8, 2017

Spiegel on Berkeley and Orthodoxy

The first paper in Idealism and Christian Theology is James Spiegel's "The Theological Orthodoxy of Berkeley's Immaterialism." This piece was originally published in Faith and Philosophy in 1996, though I must confess that I had not read it before today. I found the essay rather odd, partly because I have some confusion about the nature of its project. Contrary to my expectations, it does not really address any of the questions I outlined in my last post. On the whole, I think the essay makes problematic unexamined assumptions about Berkeley's religion, and it relies on a controversial characterization of Berkeley's...
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March 3, 2017

Idealism and Christian Theology: Introduction

I have been asked to review Joshua Farris and Mark Hamilton's Idealism and Christian Theology for Faith and Philosophy. In accord with a previous practice I have found useful, I will be blogging through the book, one post per chapter, in preparation to write the review. This post will be not so much a discussion of the book's introduction as my own way of framing and approaching the issues in the book. The fundamental paradox of theological anthropology in the Abrahamic tradition is the understanding of the human being as the breath of God dwelling in the dust of the...
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September 30, 2016

"Berkeley on Unperceived Objects and the Publicity of Language"

Completing my summer research goals (only slightly late!), I've posted another new draft to my writings page, "Berkeley on Unperceived Objects and the Publicity of Language". The paper argues that when Berkeley's language of nature theory is interpreted in light of his own philosophy of language it produces a solution to the notorious problem of the existence of objects presently unperceived by humans.
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September 28, 2016

"What Descartes Doubted, Berkeley Denied, and Kant Endorsed"

I've posted a new draft, "What Descartes Doubted, Berkeley Denied, and Kant Endorsed," to my writings page. This is actually a rewrite of a much older paper; the original idea pre-dates my dissertation. In it, I argue (among other things) that Kant's fundamental complaint against Berkeley is that Berkeley's empiricism leaves him with cognitive resources too sparse for the construction of a genuine world. In particular, Kant targets Berkeley's rejection of the application of the concept of substance to perceived objects. Of course, in Language and Structure I argue that Berkeley is aware of these sorts of problems and develops...
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April 23, 2016

Quote of the Day: Materialist Poetry

as for my opinion of Atoms, their figures and motions, (if any such things there be) I will refer you to my Book of Poems, out of which give me leave to repeat these following lines, containing the ground of my opinion of Atomes: All Creatures, howsoe're they may be nam'd Are of long, square, flat, or sharp Atomes fram'd Thus several figures several tempers make, But what is mixt, doth of the four partake. The onely cause, why things do live and die, 'S according as the mixed Atomes lie. Thus life, and death, and young, and old, Are...
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November 10, 2015

"Leibniz and the Veridicality of Body Perceptions" in Philosophers' Imprint!

I've just received word that my paper, "Leibniz and the Veridicality of Body Perceptions," will be appearing in the (open access) journal Philosophers' Imprint!
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October 20, 2015

March 25, 2015

"Matter, God, and Nonsense: Berkeley's Polemic Against the Freethinkers in the Three Dialogues"

I have posted a new draft to my writings page, "Matter, God, and Nonsense: Berkeley's Polemic Against the Freethinkers in the Three Dialogues". The final version of the paper is expected to appear in Berkeley's Three Dialogues: New Essays, ed. Stefan Storrie (Oxford University Press). In the meantime, comments are welcome.
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March 26, 2014

March 19, 2014

Quote of the Day: Bayle on the Skeptical Consequences of Multi-Location

[If multi-location is possible] it follows that neither you nor I can be certain whether we are distinct from other men, or whether we are at this moment in the seraglio of Constantinople, in Canada, in Japan, and in every city of the world, under different conditions in each place. Since God does nothing in vain, would he create many men when one, created in various places and possessing different qualities according to the places, would suffice?

- Pierre Bayle, Historical and Critical Dictionary (1697), tr. Popkin, s.v. "Pyrrho," note B


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March 6, 2014

McDaniel's Ontological Pluralism and the Puzzle of Existence

The very last essay in The Puzzle of Existence is the article by Kris McDaniel which examines the bearing of ontological pluralism on the question, why is there something rather than nothing? Ontological pluralism, as McDaniel uses that term, is the thesis that there is more than one kind of being, existence, or reality. (McDaniel usually prefers the term 'being,' but seems to use 'existence' and 'reality' as synonyms.) This is not simply the trivial thesis that there are many different kinds of beings (i.e., that there are things of many different kinds), and it is not a metaphysically deflationary...
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January 9, 2014

Conee on the Ontological Argument

According to Leibniz, any answer to the question 'why is there something rather than nothing?' must bottom out in "a necessary being, which carries the reason for its existence within itself, otherwise we still would not have a sufficient reason at which we can stop" (Principles of Nature and Grace, sect. 8, tr. Woolhouse and Francks). The coherence of such a being has, however, been questioned. What would it be for a being to 'carry the reason for its existence within itself?' What kind of impossibility could there be in the supposition that some particular being does not exist? Earl...
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November 27, 2013

Introducing The Puzzle of Existence

I am currently in the process of putting together a review of The Puzzle of Existence: Why Is There Something Rather Than Nothing?, edited by Tyron Goldschmidt, for Faith and Philosophy. For edited volumes like this, reviews never allow enough space for substantive discussion every contribution, which is prima facie unfortunate. (I say prima facie because if the reviews were that long, I, at least, would probably read a lot fewer of them.) In light of this situation, I have resolved, before writing my review, to write blog posts with critical comments on each of the chapters. This post is...
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September 9, 2013

"Berkeley's Meta-Ontology: Bodies, Forces, and the Semantics of 'Exists'"

I've posted a new draft to my (recently reorganized) writings page, "Berkeley's Meta-Ontology: Bodies, Forces, and the Semantics of 'Exists'." This paper defends, in a relatively short space, some of the central conclusions which I defend at much greater length in my dissertation, Language and the Structure of Berkeley's World. Here is the abstract of the paper: To the great puzzlement of his readers, Berkeley begins by arguing that nothing exists other than minds and ideas, but concludes by claiming to have defended the existence of bodies. How can Berkeley's idealism amount to such a defense? I introduce resources from...
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October 4, 2012

A Linguistic Argument for Immaterialism

I think Berkeley would endorse the following argument: The rules governing a bit of language cannot tell agents to perform or refrain from actions in certain circumstances unless the agents can recognize the obtaining or not obtaining of those circumstances prior to the introduction of that bit of language. A word refers to an object only if the rules governing that word tell the agent to behave differently with respect to the use of that word depending on whether that object is present. (E.g. a necessary condition of 'rabbit' referring to rabbits is that the rules governing 'rabbit' specify that...
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September 10, 2011

Berkeley, Commonsense, and Surprising Discoveries

Suppose (as happens often) that scientists, or philosophers, or explorers, or whoever, make some sort of surprising discovery, one that appears to be at odds with our commonsense view of the world. How should we react? It seems that there are three possible courses: either one rejects commonsense, or one rejects the alleged discovery, or one attempts to revise and/or reinterpret things to synthesize the two perspectives. An example: periodically results come out in neuroscience which purport to show that some brain event, of which the subject is unconscious, occurs significantly before a subject makes a supposedly free conscious choice,...
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November 9, 2010

Omniscience and Simplicity

The end of the semester is fast approaching, which means an even more hectic academic schedule, followed by a vacation. This post will be a brief remark on Sobel's treatment of omniscience, which completes his interlude on divine attributes. Following this, I will leave off until after the holidays, at which point I will deal with the remainder of the book, which treats arguments against the existence of God, and also 'Pascalian' practical arguments for belief in God. The main puzzle Sobel finds with omniscience is one pushed by Patrick Grim. The thrust of the argument is this: (1) a...
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September 28, 2010

Explanatory Principles and Infinite Propositions

In the course of his discussion of cosmological arguments, Sobel argues against the Principle of Sufficient Reason and similar strong explanatory principles. In particular, he argues that even a weak principle like "there is a deductive explanation that has only true premises for every contingent truth" will result in modal collapse (p. 218). In Sobel's terminology, an argument 'deductively explains' its conclusion iff (1) the argument is sound, and (2) the conclusion does not entail the premises (p. 219; condition (2) applies to contingent conclusions only). Sobel now introduces the following two premises: (3) If there is any true contingent...
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September 23, 2010

A Non-Leibnizian Cosmological Argument

In my last Sobel post, I reconstructed the cosmological argument Sobel attributes to Leibniz in such a way that there was no obvious contradiction in the premises by using Leibniz's own resources. Here I want to try to produce an argument with more widely accepted premises. Recall that Sobel's reconstruction is as follows: (1)The World - the Cosmos - exists. (2) The World is contingent, it is a contingent entity. (3) For everything that exists - for every fact and every existent entity - there is a sufficient reason for its existence. (4) The sufficient reason for the existence of...
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August 25, 2010

Sobel's Argument Against Believing in the Possibility of a Perfect Being

My previous posts on Sobel's Logic and Theism, have been pretty favorable and made only minor criticisms or qualifications. In this post, my criticism will be much more strenuous for, in his criticism of modern modal ontological arguments, Sobel has made a serious error. Sobel wants to argue that there is no strong presumption in favor of the possibility of a perfect being, and that, because of contrary evidence (e.g. the problem of evil), if the ontological argument is to benefit the theist (by showing that, necessarily, there is a perfect being), rather than harm the theist (by showing that...
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July 9, 2010

Authority, Authoritativeness, and Objectivity

I've just finished reading John Foster's new book, A World For Us: The Case for Phenomenalistic Idealism. Foster had previously defended idealism in his 1982 The Case for Idealism, and many of the basic arguments are the same, though I think the structure is cleaner and easier to grasp. (I've also just finished reading the restored version of Stranger in a Strange Land, so every time I write 'Foster' I'm thinking of the archangel - but that's beside the point.) The main motivation behind Foster's idealism, all the way back to 1982, is the thought that if anything is to...
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June 21, 2010

Unrestricted Quantifiers and Fundamental Quantifiers

According to Ted Sider, ontology is concerned with determining what objects are in the scope of the 'unrestricted' universal quantifier. Sider argues that ontological questions thus have genuine objective answers, for there can be no vagueness in the meaning of the unrestricted quantifier. Suppose, says Sider, that there are two precisifications, ∀1 and ∀2 of the universal quantifier ∀. Then, he says, there must be some thing, x, that is in the extension of one, but not the other, of ∀1 and ∀2. But in that case, whichever of ∀1 and ∀2 lacks x in its extension will fail to...
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May 29, 2010

Can Immediate Perception Save Realism? (Hint: No)

As I mentioned in my last post, now that the term is over I am catching up on some stuff I've been meaning to read. Another item on that list is Georges Dicker's "Anti-Berkeley" which appeared in British Journal for the History of Philosophy in 2008. Dicker's aim is to show that many of Berkeley's arguments are good, but immaterialism, nevertheless, does not follow. Dicker thinks that Berkeley's arguments are best seen as showing us how to formulate a better version of materialism than the one common in Berkeley's day. So, for instance, Dicker thinks that Berkeley successfully refutes the...
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April 29, 2010

Meta-ethics on the Brain

Last night I had what might actually be the strangest dream ever. It was much weirder than hilzoy's now-famous (among philosophy bloggers, at least) synthetic a priori dream. In my dream, some space aliens discovered that platonism was false. They were very disturbed by this because, they thought, without platonic objects, there was nothing to serve as the ontological ground for moral facts. So the aliens convened a galactic council, and held a sort of lottery. Earth lost the lottery, so the aliens were rounding up all the humans and putting them into a simulation. In the simulation, the humans...
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April 25, 2010

Quote of the Day: Turbayne on Alleged Refutations of Berkeley

The argument [for idealism] achieves [a proof of the external world] in a most ingenious yet simple way, by accepting the sceptical conclusion of one such as Hylas, that all we can ever know of the external world is certain ideas or appearances, and then admitting, as any consistent empiricist must, that these appearances are real. After all, it is a jest to hold, as do the philosophers, that the things we see and touch are mere illusions.[18] [18] This final step illuminates the irony inherent in Dr. Johnson's notorious ostensive refutation of Berkeley's 'ingenious sophistry', by exclaiming while 'striking...
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March 27, 2010

How Reductive Theories of Mental Representation Lead to Phenomenalism

It seems initially plausible to suppose that mental representation can be reduced to phenomenal character. That is, we all know that when we think about things we get into certain states of mind, and there is such a thing as what it's like to be in that state of mind. Now, when we think about things, we are representing the world as being in certain ways. It is tempting to suppose that this representing can be explained entirely in terms of the what-it's-like (phenomenal character). According to naive forms of representative realism, this is because that phenomenal experience resembles the...
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February 8, 2010

A Simple Argument for Idealism

One of Berkeley's key arguments for his idealism (his positive view that the only fundamental entities are minds and ideas) is something like the following: (1)The gardener is justifiably certain that he waters the cherry tree daily. (2)One can be justifiably certain only of facts about one's own mind and its ideas. Therefore, (3)The gardener's belief that he waters the cherry tree daily is a belief about his own mind and/or its ideas. (1) is a 'common sense' premise, which Berkeley thinks we ought to preserve. (2) is supposed to have been shown by the skeptical considerations of Descartes and...
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December 2, 2009

Gupta and Idealism: My Project for the Next Two Weeks

It's been a while since I posted anything, and even longer since I posted anything other than Aristotle quotes - I have been busy trying to get my term papers underway. Since I don't expect to have any more time in the near future than I have had in the recent past, I thought I would keep things going around here by posting an outline of one of my projects. Below is a very rough draft of an introduction to one of my two papers (it doesn't have a working title yet) which describes what I hope to accomplish. Comments...
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November 16, 2009

Quote of the Day: Aristotle on Parmenides

Parmenides seems to speak with rather more insight: for not considering, aside from being, anything that is not worthy to be, he thinks that from necessity it - that is, being - is one, and nothing else ... But being compelled to follow the phenomena, he supposes that it is one according to reason [or: in account], but many according to sense perception (Aristotle, Metaphysics 986b27-33, my translation, after Ross). The surviving fragments of Parmenides speak of a 'path of persuasion' and a 'way of mortal opinion.' These seem to have been two sections of his original poem. In the former, he denies the reality of plurality or change. Puzzlingly...
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November 9, 2009

What Caused God?

In comments to my post on Dawkins and the Philosophers, atheist blogger Jonathan West has been pushing back against Michael Ruse's claim that Dawkins' prominent use of the "what caused God?" question is, as Jonathan puts it, 'fatuous.' Jonathan has also pushed this point in a recent blog post which considers this question in light of Swinburne's 'necessary being' arguments in The Existence of God. I will first make a few remarks about Swinburne's work in this area, and then proceed to show why the "what caused God?" question is indeed confused. To be fair, I admit...
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November 7, 2009

Subjunctive Phenomenalism and Logical Construction Idealism

Within the last week, I have seen the same mistake in two different recent books on the philosophy of perception: According to phenomenalism, objects are (in John Stuart Mill's excellent phrase) "permanent possibilities of sensation"; they are, in a more recent idiom, "logical constructions" of sense data. (Alva Noë, Action in Perception, 79) Berkeley observed that the philosophical conception that the objects of direct awareness are sense-data (or, in Berkeley's terminology, "ideas") is perfectly compatible with the commonsense conception that the objects of direct awareness are ordinary things (e.g., tomatoes). We can accept both, Berkeley argued, if we recognize the...
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November 2, 2009

Does 'The Desk is Black' Express a Proposition?

According to standard versions of subjunctive phenomenalism, such as the version developed by C. I. Lewis, sentences purporting to be about physical objects can be analyzed into long conjunctions of subjunctive conditionals having to do only with sense data and voluntary actions. It's very difficult to actually state these conditionals, but they are supposed to say things like 'if I'm in such and such a condition, and I do X, I will experience Y'. Alva Noë is not a phenomenalist, but he expresses some similar ideas about the nature of perception. Specifically, Noë argues that perception does not involve the...
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October 25, 2009

Speaking Loosely

Philosophers often use such phrases as 'strictly speaking' or 'in metaphysical rigor' before saying things that might sound outrageous. For instance, many philosophers have denied the existence of entities which everyone 'knows' to exist, such as chairs, or minds, or numbers. The philosopher will almost always prefix such a denial with this sort of modifier. The opposite of speaking strictly is speaking loosely. In early modern philosophy, the 'strict and philosophical' mode of speech was often contrasted with the 'loose and popular' mode. Other philosophers might use the modifier 'strictly and literally.' What is the point of making these qualifications?...
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September 17, 2009

Quote of the Day: Berkeley on Combining Ideas Into Objects

One of the big questions in Berkeley interpretation is how and by whom ideas or experiences get put together to form objects. (See, for instance, the end of Margaret Atherton's recent paper "'The Books Are in the Study as Before': Berkeley's Claims About Real Physical Objects".) I've just noticed an interesting passage in Berkeley that ought to be really important to this discussion, though I don't think I've seen it quoted in this connection: [I]t ought to be considered that number (however some may reckon it amongst the primary qualities) is nothing fixed and settled, really existing in things themselves....
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August 27, 2009

Reductivism, Eliminativism, and Berkeley's Theory of Physical Objects

In present-day metaphysical discussions it is common to distinguish between 'reductivism' and 'eliminativism' with respect to some class of objects, C. These can be thought of as two different ways of denying the (fundamental, metaphysical) existence/reality of the objects in C. Examples of classes discussed by philosophers in this way include minds, conscious experiences, and macrophysical objects. The two views may be given a linguistic formulation as follows: Linguistic Reductivism (LR): Sentences which appear to assume the existence of the putative objects in C are strictly and literally true, although, in metaphysical rigor, the putative objects do not exist. (The...
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August 24, 2009

External Coherence and the Reality of The Matrix

David Chalmers writes: I think that even if I am in a matrix [i.e. any computer simulation similar to the one depicted in The Matrix], my world is perfectly real. A brain in a vat is not massively deluded (at least if it has always been in a vat) ... Philosophers have held this sort of view before. The 18th-century Irish philosopher George Berkeley held, in effect, that appearance is reality ... If this is right, then the world perceived by envatted beings is perfectly real: they have all the right appearances and appearance is reality ("The Matrix as Metaphysics"...
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June 30, 2009

"The Homonymy of Predicative Being"

I have just posted to my workbench a paper entitled "The Homonymy of Predicative Being." Here is the abstract: Aristotle famously claimed that "being is said in many ways." This has traditionally been understood as a claim about existence. However, the interpretation of Aristotle's theory of being under this assumption has proven problematic. In this paper, I argue for an alternative reading which identifies the core uses of 'being' as copula uses with primary substances as subjects. Comments and criticisms are welcome below....
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May 14, 2009

A Semantic Argument for Phenomenalism

I believe an argument similar to the following can be attributed to Berkeley, but I have too much real work to do to go find the texts to justify it right now. (Which is why we have blogs, where we don't have to adequately justify our assertions!) The meaning of a word is exhausted by the correct conditions of its application. Any speaker S on any given occasion determines whether to utter a given word based entirely on S's subjective state (i.e. factors internal to S). Speakers consistently and non-accidentally use 'plain language' correctly (i.e. 'common sense' is correct). Therefore,...
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December 4, 2008

The Reason for Berkeley's Anti-Abstractionism

In my post, Does Philosophy 'Trickle Down', I noted that "Berkeley thinks he has discovered two philosophical doctrines which are indeed 'the Chief Causes of Error and Difficulty in the Sciences' and also 'the Grounds of Scepticism, Atheism, and Irreligion.' These are the epistemic/linguistic doctrine of abstraction, and the metaphysical doctrine of corporeal substance." In this post I want to examine how the doctrine of abstract ideas is supposed, according to Berkeley, to lead to "Error and Difficulty in the Sciences ... [and] ... Scepticism, Atheism, and Irreligion."...
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November 20, 2008

What Is Composition?

I am currently doing research for a term paper in which I will argue that composition requires a 'principle of unity'. That is (to a first approximation), that given some objects, the xs, there cannot be any y which has all and only the xs as parts unless there is some feature of the world which bestows some degree of unity or oneness on y. I hope to argue that this is a conceptual truth - that is, that it flows from what we mean by composition. I haven't finished reading up on the subject yet, so there may already...
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October 30, 2008

Quote of the Day: Berkeley's Own Summary of the Argument from Representational Realism to Skepticism

In a previous post, I summarized Berkeley's argument against representational realism. I just came across a very good passage in the Dialogues where Berkeley himself gives a summary of his argument that representational realism leads to unpalatable skeptical consequences: It is your opinion, the ideas we perceive by our senses are not real things, but images, or copies of them. Our knowledge therefore is no farther real, than our ideas are the true representations of those originals. But as these supposed originals are themselves unknown it is impossible to know how far our ideas resemble them; or whether they resemble...
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October 23, 2008

The Simplicity of Berkeley's Argument Against Representative Realism

A passage in T.E. Jessop's introduction to the Siris reminded me today of how simple Berkeley's argument against representative realism is. Jessop writes, "Such archetypes - material things as understood by the Cartesians and Locke - [Berkeley] rejected on the epistemological ground that they require a representative theory of perception, which logically entails scepticism, since it excludes the possibility of comparing the sensed object and the supposed 'real object'." (Berkeley, Works, ed. Luce and Jessop, vol. 5 p. 17) The argument, in all its simplicity, goes like this: Representative realism holds that, for each object of our experience, there exist...
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October 14, 2008

Minimalist Ontology and Familiar Object Talk

I have just finished reading Mark Johnston's 1992 paper, "Constitution is Not Identity," reprinted in Michael Rea's Material Constitution: A Reader. After arguing against a variety of theories of material constitution, Johnston claims that, with regard to our talk about familiar objects, "the distinction it embodies is acceptable as it stands and what is bogus is the conception of justifying our practice which requires that, for the distinction to be justified, the difference between an F and its constituting matter must be a deep metaphysical difference secured by an extra ingredient of the F." (Rea, p. 58) Johnston calls the person who holds this view 'the Minimalist'...
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September 26, 2008

Quote of the Day: Appearances and Judgments About Appearances

And when we question whether the underlying object is such as it appears, we grant the fact that it appears, and our doubt does not concern the appearance itself but the account given of that appearance, - and that is a different thing from questioning the appearance itself. For example, honey appears to us to be sweet (and this we grant, for we perceive sweetness through the senses), but whether it is also sweet in its essence is for us a matter of doubt, since this is not an appearance, but a judgement regarding the appearance. (Sextus Empiricus, Outlines of...
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June 5, 2008

Representative Realism, Phenomenalism, and "Physical-Talk"

When I wrote a while back about the idealist strategy, I said that the second step was to "argue that our physical statements - both ordinary statements about physical objects and statements about the discipline of physics - are best construed as talking about perception." What I want to do here is to unpack this statement. First, let's examine what the argument is supposed to do and then we'll look at the argument as it appears in a brief section of Berkeley's Three Dialogues. This piece of the argument is a reductio against representative realism...
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April 11, 2008

Language and the Metaphysics of the Material World

Let me begin with a reminder: be sure to get your posts in for the 67th Philosophers' Carnival by tomorrow (Saturday) midnight (Eastern time), and remember that the theme is idealism. I've received many good posts already (probably more than I'll be able to include), but only a handful are idealism-themed. Having said that, let me begin my own idealism-themed post. In my paper "The Semantics of Sense Perception in Berkeley" (which I never tire of linking to, because it is much better thought out, developed, and argued than the mostly half-baked stuff I post on this blog), I spend...
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March 29, 2008

Berkeley: Phenomenalist or Platonist?

Commentators have long recognized the existence of two distinct strains of thought in Berkeley's discussions of how our perceptions give rise to something that is properly called a world. According to the phenomenalist strain, the world is quite simply composed of perception and it becomes a world, rather than simply an unrelated collection of perceptions, by means of the orderliness with which God causes perceptions. According to the Platonist strain, the world (and each object in it) has an archetype in the divine mind and our perceptions are perceptions of the world because what we perceive is an "ectype" of that archetype...
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March 27, 2008

The Philosophers' Carnival Returns to blog.kennypearce.net

The 66th Philosophers' Carnival is coming up this Monday at The Uncredible Hallq. The Philosophers' Carnival is a bi-weekly roundup of blog posts on subjects related to academic philosophy including, but not limited to, metaphysics, epistemology, ethics, political theory, "continental" philosophy and the history of philosophy. Submissions are due online every other Saturday for inclusion in the carnival the following Monday. Following the Uncredible Carnival 66 this Monday, Philosophers' Carnival 67 will take place here at blog.kennypearce.net on Monday, April 14 (submissions due by Saturday April 12). Some of you may recall that I had previously hosted Philosophers' Carnival 31. The 67th carnival will be focused on the theme of "idealism"...
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March 15, 2008

Berkeley's Theory of Reference and the Critique of Matter

George Berkeley is well known for his critique of matter. By "matter" he means Locke's "material substratum." At the end of the Three Dialogues Between Hylas and Philonous he actually does acknowledge that one might use the word "matter" simply to mean "the stuff of the physical world" (that's not a direct quote) and he doesn't object to this, so he actually isn't opposed to the way the word was used in your physics or chemistry classes, but only to the way it was used in early modern metaphysics. The critique of matter is tied up in the critique of...
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February 16, 2008

Quote of the Day: Schopenhauer on the Absurdity of Materialism

The objective method [i.e. the method of philosophy which starts from the object and proceeds to the subject] can be developed most consistently and carried farthest when it appears as materialism proper. It regards matter, and with it time and space, as existing absolutely, and passes over the relation to the subject in which alone all this exists. Further, it lays hold of the law of causality as the guiding line on which it tries to progress, taking it to be a self-existing order or arrangement of things, veritas aeterna, and consequently passing over the understanding, in which and for...
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February 2, 2008

The Idealist Strategy

There is a particular strategy of argument generally employed by idealists in their arguments against materialism/physicalism/scientific realism and/or substance dualism. The strategy originates primarily with Berkeley. Some of the Parmenides fragments sound similar, but, absent context, it is not possible to determine exactly what he intended. Hume and Kant developed their metaphysical systems largely in response to it, and it is similar to the arguments of the so-called "modern Idealists" which Moore set out to refute. Finally, the strategy is, in recent literature, explicitly adopted in John Foster's The Case for Idealism, which I am currently reading. The strategy goes like this...
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November 29, 2007

Quote of the Day: Schopenhauer on The History of Idealism

Now as, notwithstanding the transitory, isolated nature of our representations with respect to their immediate presence in our consciousness, the Subject nevertheless retains the representation of an all-comprehensive complex of reality, as described above, by means of the function of the Understanding; representations have, on the strength of this antithesis, been viewed, as something quite different when belonging to that complex than when considered with reference to their immediate presence in our consciousness ... This view of matter, which is the ordinary one, is known under the name Realism. On the appearance of modern philosophy, Idealism opposed itself to this...
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September 25, 2007

"The Ontological Status of Dreams in Berkeleian Metaphysics"

The Dualist 13 (2006) is finally available online, including my paper "The Ontological Status of Dreams in Berkeleian Metaphysics". Unfortunately, the main index site is still badly broken. Hopefully it will soon be fixed. In the meantime, the direct link to my paper works. There are some typesetting errors in the PDF (most importantly: footnote numbering is messed up, and some logical symbols are boxed out), and I haven't seen the print version to know if it contains these errors as well. I was never shown any proofs and I also found some spelling errors, and at least one place where a sentence is missing a word. Such is life. But the content is, I hope more interesting than the form...
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August 8, 2007

Linguistic Ersatz Modal Realism and Types of Modality

David Lewis is best known for his modal realism, the view that all possible worlds exist in precisely the same sense that the actual world exists. He holds this view because he believes that it solves all sorts of philosophical problems related to modality, counterfactuals, properties, and so forth. However, there are a number of philosophers who think that the benefits of modal realism can be had without actually supposing that the possible world really exist. These philosophers Lewis calls ersatzers...
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