In philosophy, the theory of materialism holds that the only thing that exists is matter or energy; that all things are composed of material and all phenomena (including consciousness) are the result of material interactions. In other words, matter is the only substance, and reality is identical with the actually occurring states of energy and matter.
To many philosophers, 'materialism' is synonymous with 'physicalism'. However, materialists have historically held that everything is made of matter, but physics has shown that gravity, for example, is not made of matter in the traditional sense of "'an inert, senseless substance, in which extension, figure, and motion do actually subsist'… So it is tempting to use 'physicalism' to distance oneself from what seems a historically important but no longer scientifically relevant thesis of materialism, and related to this, to emphasize a connection to physics and the physical sciences." Therefore much of the generally philosophical discussion below on materialism may be relevant to physicalism.
Also related to materialism are the ideas of methodological naturalism (i.e. "let's at least do science as though physicalism is true") and metaphysical naturalism (i.e. "the physical world is all that exists").
Materialism belongs to the class of monist ontology. As such, it is different from ontological theories based on dualism or pluralism. For singular explanations of the phenomenal reality, materialism would be in contrast to idealism, neutral monism, and spiritualism.
Despite the large number of philosophical schools and subtle nuances between many, all philosophies are said to fall into one of two primary categories, which are defined in contrast to each other: Idealism, and materialism.[a] The basic proposition of these two categories pertains to the nature of reality, and the primary distinction between them is the way they answer two fundamental questions: "what does reality consist of and how does it originate?" To idealists, spirit or mind or the objects of mind (ideas) are primary, and matter secondary. To materialists, matter is primary, and mind or spirit or ideas are secondary, the product of matter acting upon matter.
The materialist view is perhaps best understood in its opposition to the doctrines of immaterial substance applied to the mind historically, famously by René Descartes. However, by itself materialism says nothing about how material substance should be characterized. In practice, it is frequently assimilated to one variety of physicalism or another.
Materialism is often associated with reductionism, according to which the objects or phenomena individuated at one level of description, if they are genuine, must be explicable in terms of the objects or phenomena at some other level of description — typically, at a more reduced level. Non-reductive materialism explicitly rejects this notion, however, taking the material constitution of all particulars to be consistent with the existence of real objects, properties, or phenomena not explicable in the terms canonically used for the basic material constituents. Jerry Fodor influentially argues this view, according to which empirical laws and explanations in "special sciences" like psychology or geology are invisible from the perspective of basic physics. A lot of vigorous literature has grown up around the relation between these views.
Modern philosophical materialists extend the definition of other scientifically observable entities such as energy, forces, and the curvature of space. However philosophers such as Mary Midgley suggest that the concept of "matter" is elusive and poorly defined.
Materialism typically contrasts with dualism, phenomenalism, idealism, vitalism, and dual-aspect monism. Its materiality can, in some ways, be linked to the concept of Determinism, as espoused by Enlightenment thinkers. It has been criticized as a spiritually empty philosophy.
During the 19th century, Karl Marx extended the concept of materialism to elaborate a materialist conception of history centered on the roughly empirical world of human activity (practice, including labor) and the institutions created, reproduced, or destroyed by that activity (see materialist conception of history).
History of materialism 
Axial Age 
In Ancient Indian philosophy, materialism developed around 600 BC with the works of Ajita Kesakambali, Payasi, Kanada, and the proponents of the Cārvāka school of philosophy. Kanada became one of the early proponents of atomism. The Nyaya–Vaisesika school (600 BC - 100 BC) developed one of the earliest forms of atomism, though their proofs of God and their positing that the consciousness was not material precludes labelling them as materialists. Buddhist atomism and the Jaina school continued the atomic tradition.
Ancient Greek philosophers like Thales, Anaxagoras (ca. 500 BC – 428 BC), Epicurus and Democritus prefigure later materialists. The Latin poem De Rerum Natura by Lucretius (ca. 99 BC – ca. 55 BC) reflects the mechanistic philosophy of Democritus and Epicurus. According to this view, all that exists is matter and void, and all phenomena result from different motions and conglomerations of base material particles called "atoms" (literally: "indivisibles"). De Rerum Natura provides mechanistic explanations for phenomena such as erosion, evaporation, wind, and sound. Famous principles like "nothing can touch body but body" first appeared in the works of Lucretius.
Common Era 
Later Indian materialist Jayaraashi Bhatta (6th century) in his work Tattvopaplavasimha ("The upsetting of all principles") refuted the Nyaya Sutra epistemology. The materialistic Cārvāka philosophy appears to have died out some time after 1400. When Madhavacharya compiled Sarva-darśana-samgraha (a digest of all philosophies) in the 14th century, he had no Cārvāka/Lokāyata text to quote from, or even refer to.
In early 12th-century al-Andalus, the Arabian philosopher, Ibn Tufail (Abubacer), wrote discussions on materialism in his philosophical novel, Hayy ibn Yaqdhan (Philosophus Autodidactus), while vaguely foreshadowing the idea of a historical materialism.
Modern Era 
Later on, Pierre Gassendi represented the materialist tradition, in opposition to René Descartes' attempts to provide the natural sciences with dualist foundations. There followed the materialist and atheist Jean Meslier, Julien Offroy de La Mettrie, Paul-Henri Thiry Baron d'Holbach, Denis Diderot, and other French Enlightenment thinkers; as well as in England, John "Walking" Stewart, whose insistence that all matter is endowed with a moral dimension had a major impact on the philosophical poetry of William Wordsworth.
Schopenhauer wrote that "...materialism is the philosophy of the subject who forgets to take account of himself". He claimed that an observing subject can only know material objects through the mediation of the brain and its particular organization. That is, the brain itself is the "determiner" of how material objects will be experienced or perceived. "Everything objective, extended, active, and hence everything material, is regarded by materialism as so solid a basis for its explanations that a reduction to this (especially if it should ultimately result in thrust and counter-thrust) can leave nothing to be desired. But all this is something that is given only very indirectly and conditionally, and is therefore only relatively present, for it has passed through the machinery and fabrication of the brain, and hence has entered the forms of time, space, and causality, by virtue of which it is first of all presented as extended in space and operating in time."
The materialist and atheist Ludwig Feuerbach would signal a new turn in materialism through his book, The Essence of Christianity, which provided a humanist account of religion as the outward projection of man's inward nature. Feuerbach's materialism would later heavily influence Karl Marx.
Scientific materialists 
Many current and recent philosophers—e.g., Daniel Dennett, Willard Van Orman Quine, Donald Davidson, John Rogers Searle, and Jerry Fodor—operate within a broadly physicalist or materialist framework, producing rival accounts of how best to accommodate mind—functionalism, anomalous monism, identity theory, and so on.
Scientific 'Materialism' is often synonymous with, and has so far been described, as being a reductive materialism. In recent years, Paul and Patricia Churchland have advocated a radically contrasting position (at least, in regards to certain hypotheses); eliminativist materialism holds that some mental phenomena simply do not exist at all, and that talk of those mental phenomena reflects a totally spurious "folk psychology" and Introspection illusion. That is, an eliminative materialist might suggest that a concept like 'belief' simply has no basis in fact - the way folk science speaks of demon-caused illnesses. Reductive materialism being at one end of a continuum (our theories will reduce to facts) and eliminative materialism on the other (certain theories will need to be eliminated in light of new facts), Revisionary materialism is somewhere in the middle.
Some scientific materialists have been criticized, for example by Noam Chomsky, for failing to provide clear definitions for what constitutes matter, leaving the term 'materialism' without any definite meaning. Chomsky also states that since the concept of matter may be affected by new scientific discoveries, as has happened in the past, scientific materialists are being dogmatic in assuming the opposite.
Defining matter 
The nature and definition of matter - like other key concepts in science and philosophy - have occasioned much debate. Is there a single kind of matter (hyle) which everything is made of, or multiple kinds? Is matter a continuous substance capable of expressing multiple forms (hylomorphism), or a number of discrete, unchanging constituents (atomism)? Does it have intrinsic properties (substance theory), or is it lacking them (prima materia)?
One challenge to the traditional concept of matter as tangible "stuff" came with the rise of field physics in the 19th century. Relativity shows that matter and energy (including the spatially distributed energy of fields) are interchangeable. This enables the ontological view that energy is prima materia and matter is one of its forms. On the other hand, the Standard Model of Particle physics uses quantum field theory to describe all interactions. On this view it could be said that fields are prima materia and the energy is a property of the field.
According to the dominant cosmological model, the Lambda-CDM model, less than 5% of the universe's energy density is made up of the "matter" described by the Standard Model of Particle Physics, and the majority of the universe is composed of dark matter and dark energy - with no agreement amongst scientists about what these are made of. This obviously refutes historical materialism which held that the only things that exist are things composed of the kind of matter with which we are broadly familiar ("traditional matter") - which was anyway under great strain as noted above from relativity and quantum field theory.
With the advent of quantum physics, some scientists believed the concept of matter had merely changed, while others believed the conventional position could no longer be maintained. For instance Werner Heisenberg said "The ontology of materialism rested upon the illusion that the kind of existence, the direct 'actuality' of the world around us, can be extrapolated into the atomic range. This extrapolation, however, is impossible... atoms are not things." Likewise, some philosophers[which?] feel that these dichotomies necessitate a switch from materialism to physicalism. Others use the terms "materialism" and "physicalism" interchangeably.
The concept of matter has changed in response to new scientific discoveries. Thus materialism has no definite content independent of the particular theory of matter on which it is based. According to Noam Chomsky, any property can be considered material, if one defines matter such that it has that property.
Materialism and physicalism 
George Stack distinguishes between materialism and physicalism:
In the twentieth century, physicalism has emerged out of positivism. Physicalism restricts meaningful statements to physical bodies or processes that are verifiable or in principle verifiable. It is an empirical hypothesis that is subject to revision and, hence, lacks the dogmatic stance of classical materialism. Herbert Feigl defended physicalism in the United States and consistently held that mental states are brain states and that mental terms have the same referent as physical terms. The twentieth century has witnessed many materialist theories of the mental, and much debate surrounding them.—George J. Stack, Routledge Encyclopedia of Philosophy
Criticism and alternatives 
The professor of Philosophy at the University of Notre Dame Alvin Plantinga criticises it, and the Emiritus Regius Professor of Divinity Keith Ward suggests that materialism is rare amongst contemporary UK philosophers: "Looking around my philosopher colleagues in Britain, virtually all of whom I know at least from their published work, I would say that very few of them are materialists."
Scientific objections to materialism 
Some modern day physicists and science writers such as Paul Davies and John Gribbin have argued that scientific finds in physics such as quantum mechanics and chaos theory have disproven materialism. In their 1991 book The Matter Myth in the first chapter titled The death of materialism they wrote:
Then came our Quantum theory, which totally transformed our image of matter. The old assumption that the microscopic world of atoms was simply a scaled-down version of the everyday world had to be abandoned. Newton's deterministic machine was replaced by a shadowy and paradoxical conjunction of waves and particles, governed by the laws of chance, rather than the rigid rules of causality. An extension of the quantum theory goes beyond even this; it paints a picture in which solid matter dissolves away, to be replaced by weird excitations and vibrations of invisible field energy. Quantum physics undermines materialism because it reveals that matter has far less 'substance' than we might believe. But another development goes even further by demolishing Newton's image of matter as inert lumps. This development is the theory of chaos, which has recently gained widespread attention.
— Paul Davies and John Gribbin, 'The Matter Myth', Chapter 1
Davies's and Gribbin's objections are shared by proponents of digital physics who view information rather than matter to be fundamental, and were also shared by founders of quantum theory such as Max Planck who wrote:
As a man who has devoted his whole life to the most clear headed science, to the study of matter, I can tell you as a result of my research about atoms this much: There is no matter as such. All matter originates and exists only by virtue of a force which brings the particle of an atom to vibration and holds this most minute solar system of the atom together. We must assume behind this force the existence of a conscious and intelligent Mind. This Mind is the matrix of all matter.
— Max Planck, 'Das Wesen der Materie', 1944
Religious and spiritual objections 
According to the Catholic Encyclopedia, materialism denies the existence of both deities and "souls." It is therefore incompatible with most world religions including Christianity, Judaism and Islam. In most of Hinduism and transcendentalism, all matter is believed to be an illusion called Maya, blinding us from knowing the truth. Maya is the limited, purely physical and mental reality in which our everyday consciousness has become entangled. Maya gets destroyed for a person when they perceive Brahman with transcendental knowledge. In contrast, Joseph Smith, the first president of the LDS Church, claimed "There is no such thing as immaterial matter,". "All spirit is matter, but it is more fine or pure, and can only be discerned by purer eyes; We cannot see it; but when our bodies are purified we shall see that it is all matter." This spirit element has always existed; it is co-eternal with God. (Teachings, pp. 352–354.) It is also called intelligence or the light of truth, which like all observable matter "was not created or made, neither indeed can be."
Philosophical objections 
Kant argued against all three forms of materialism, subjective idealism (which he contrasts with his "transcendental idealism") and dualism. However, Kant also argues that change and time require an enduring substrate, and does so in connection with his Refutation of Idealism. Postmodern/poststructuralist thinkers also express a skepticism about any all-encompassing metaphysical scheme. Philosopher Mary Midgley, among others, argues that materialism is a self-refuting idea, at least in its eliminative form.
An argument for idealism, such as those of Hegel and Berkeley is ipso facto an argument against materialism. Matter can be argued to be redundant, as in bundle theory, and mind-independent properties can in turn be reduced to subjective percepts.
If matter and energy are seen as necessary to explain the physical world, but incapable of explaining mind, dualism results. Emergence, holism and process philosophy seek to ameliorate the perceived shortcomings of traditional (especially mechanistic) materialism without abandoning materialism entirely.
Materialism as methodology 
Some critics object to materialism as part of an overly skeptical, narrow or reductivist approach to theorizing, rather than to the ontological claim that matter is the only substance. Particle physicist and Anglican theologian John Polkinghorne objects to what he calls promissory materialism — claims that materialistic science will eventually succeed in explaining phenomena it has not so far been able to explain. Polkinghorne prefers "dual-aspect monism" to faith in materialism.
See also 
- Physicalism entry by Daniel Stoljar in the Stanford Encyclopedia of Philosophy
- Edwards, Paul (Editor-in-chief) (1972. First published 1967), The Encyclopedia of Philosophy, Vols.1-4, ISBN 0-02-894950-1(Originally published 1967 in 8 volumes) Alternative ISBN 978-0-02-894950-5
- Priest, Stephen (1991), Theories of the Mind, London: Penguin Books, ISBN 0-14-013069-1 Alternative ISBN 978-0-14-013069-0
- Novack, George (1979), The Origins of Materialism, New York: Pathfinder Press, ISBN 0-87348-022-8
- Mary Midgley The Myths We Live By.
- History of Indian Materialism, Ramakrishna Bhattacharya
- Dominique Urvoy, "The Rationality of Everyday Life: The Andalusian Tradition? (Aropos of Hayy's First Experiences)", in Lawrence I. Conrad (1996), The World of Ibn Tufayl: Interdisciplinary Perspectives on Ḥayy Ibn Yaqẓān, pp. 38-46, Brill Publishers, ISBN 90-04-09300-1.
- The World as Will and Representation, II, Ch. 1
- The World as Will and Representation, I, §7
- http://plato.stanford.edu/entries/materialism-eliminative/#SpeProFolPsy, by William Ramsey
- Chomsky, Noam (2000) New Horizons in the Study of Language and Mind
- "Matter". Catholic Encyclopedia. New York: Robert Appleton Company. 1913.
- "Hylomorphism" Concise Britannica
- "Atomism: Antiquity to the Seventeenth Century" Dictionary of the History of Ideas
"Atomism in the Seventeenth Century" Dictionary of the History of Ideas
Article by a philosopher who opposes atomism
Information on Buddhist atomism
Article on traditional Greek atomism
"Atomism from the 17th to the 20th Century" Stanford Encyclopedia of Philosophy
- Stanford Encyclopedia of Philosophy on substance theory
- The Friesian School on Substance and Essence
- Bernard Sadoulet "Particle Dark Matter in the Universe: At the Brink of Discovery?" Science 5 January 2007: Vol. 315. no. 5808, pp. 61 - 63
- "Many philosophers and scientists now use the terms `material' and `physical' interchangeably" Dictionary of the Philosophy of Mind
- stack, George J. (1998), "Materialism", in Craig, E., Routledge Encyclopedia of Philosophy: Luther to Nifo (Routledge) (v. 6): 171–172, ISBN 978-0-415-18714-5
- Is Religion Dangerous? p 91
- "Materialism". Catholic Encyclopedia. New York: Robert Appleton Company. 1913.
- (D. & C. 131:7–8.) http://www.lds.org/scriptures/dc-testament/dc/131.7-8?lang=eng
- (D. & C. 93:29.) http://www.lds.org/scriptures/dc-testament/dc/93.29?lang=eng
- see Critique of Pure Reason where he gives a "refutation of idealism" in pp345-52 (1st Ed) and pp 244-7 (2nd Ed) in the Norman Kemp Smith edition
- Critique of Pure Reason (A379, p352 NKS translation). "If, however, as commonly happens, we seek to extend the concept of dualism, and take it in the transcendental sense, neither it nor the two counter-alternatives — pneumatism [idealism] on the one hand, materialism on the other — would have any sort of basis [...] Neither the transcendental object which underlies outer appearances nor that which underlies inner intuition, is in itself either matter or a thinking being, but a ground (to us unknown)..."
- "Kant argues that we can determine that there has been a change in the objects of our perception, not merely a change in our perceptions themselves, only by conceiving of what we perceive as successive states of enduring substances (see Substance)".Routledge Encyclopedia of Philosophy
- "All determination of time presupposes something permanent in perception. This permanent cannot, however, be something in me [...]" Critique of Pure Reason, B274, P245 (NKS translation)
- see Mary Midgley The Myths we Live by
- Baker, L. (1987). Saving Belief Princeton, Princeton University Press
- Reppert, V. (1992). "Eliminative Materialism, Cognitive Suicide, and Begging the Question". Metaphilosophy 23: 378-92.
- Seidner, Stanley S. (June 10, 2009) "A Trojan Horse: Logotherapeutic Transcendence and its Secular Implications for Theology". Mater Dei Institute. p 5.
- Boghossian, P. (1990). "The Status of Content" Philosophical Review 99: 157-84. and (1991) "The Status of Content Revisited". Pacific Philosophical Quarterly 71: 264-78.
- However, critics of materialism are equally guilty of prognosticating that it will never be able to explain certain phenomena " Over a hundred years ago William James saw clearly that science would never resolve the mind-body problem".Are We Spiritual Machines? Dembski, W.
- Interview with John Polkinghorne
Further reading 
- Buchner, L. (1920). [books.google.com/books?id=tw8OuwAACAAJ Force and Matter]. New York, Peter Eckler Publishing Co.
- Churchland, Paul (1981). Eliminative Materialism and the Propositional Attitudes. The Philosophy of Science. Boyd, Richard; P. Gasper; J. D. Trout. Cambridge, Massachusetts, MIT Press.
- Field, Hartry H. (1981), "Mental representation", in Block, Ned Joel, Readings in Philosophy of Psychology 2, Taylor & Francis, ISBN 9780416746006
- Owen J. Flanagan (1991). Science of the Mind 2e. MIT Press. ISBN 978-0-262-56056-6. Retrieved 19 December 2012.
- Fodor, J.A. (1974). Special Sciences, Synthese, Vol.28.
- Gunasekara, Victor A. (2001). "Buddhism and the Modern World". Basic Buddhism: A Modern Introduction to the Buddha's Teaching". 18 January 2008
- Kim, J. (1994) Multiple Realization and the Metaphysics of Reduction, Philosophy and Phenomenological Research, Vol. 52.
- La Mettrie, La Mettrie, Julien Offray de (1748). L'Homme Machine (Man a Machine)
- Lange, Friedrich A.,(1925) The History of Materialism. New York, Harcourt, Brace, & Co.
- Moser, Paul K.; Trout, J. D. (1995). Contemporary Materialism: A Reader. Psychology Press. ISBN 978-0-415-10863-8. Retrieved 19 December 2012.
- Priest, Stephen (1991), Theories of the Mind, London: Penguin Books, ISBN 0-14-013069-1 Alternative ISBN 978-0-14-013069-0
- Schopenhauer, Arthur (1969). The World as Will and Representation. New York, Dover Publications, Inc.
- Seidner, Stanley S. (June 10, 2009). "A Trojan Horse: Logotherapeutic Transcendence and its Secular Implications for Theology". Mater Dei Institute
- Turner, MS (2007 Jan 5). "Quarks and the cosmos". Science (New York, N.Y.) 315 (5808): 59–61. PMID 17204637.
- Vitzthum, Richard C. (1995) Materialism: An Affirmative History and Definition. Amhert, New York, Prometheus Books.
|Look up materialism in Wiktionary, the free dictionary.|
|Wikisource has the text of the 1911 Encyclopædia Britannica article Materialism.|
- Stanford Encyclopedia:
- Philosophical Materialism (by Richard C. Vitzthum) from infidels.org
- Dictionary of the Philosophy of Mind on Materialism from the University of Waterloo