Four causes

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Four causes
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{{see also|Potentiality and actuality}}File:Aristotle's Four Causes of a Table.svg|thumb|upright=2|(Aristotle]]'s Four Causes illustrated for a table: material (wood), formal (design), efficient (carpentry), final (dining).)The "four causes" are elements of an influential principle in Aristotelian thought whereby explanations of change or movement are classified into four fundamental types of answer to the question "why?". Aristotle wrote that "we do not have knowledge of a thing until we have grasped its why, that is to say, its cause."Aristotle, Physics 194 b17–20; see also: {{nowrap|Posterior Analytics 71 b9–11; 94 a20.}}"[F]or a full range of cases, an explanation which fails to invoke all four causes is no explanation at all."—"Four Causes". Falcon, Andrea. Aristotle on Causality. Stanford Encyclopedia of Philosophy 2008. While there are cases where identifying a "cause" is difficult, or in which "causes" might merge, Aristotle held that his four "causes" provided an analytical scheme of general applicability.Lindberg, David. The Beginnings of Western Science (1992). p. 53Aitia, from Greek , was the word that Aristotle used to refer to the causal explanation that has traditionally been translated as "cause", but this specialized, technical, philosophical usage of the word "cause" does not correspond exactly to its most usual applications in everyday English language.{{sfn|Leroi|2015|pages=91–92}} The translation of Aristotle's that is nearest to current ordinary language could be "question" or "causal explanation",{{sfn|Leroi|2015|pages=91–92}} although any such terms may mask the fact that Aristotelians consider the four causes to be more fundamental in nature than mere explanations. In this article, the peculiar philosophical usage of the word "cause" will be employed, for tradition's sake, but the reader should not be misled by confusing this technical usage with current ordinary language.Aristotle held that there were four kinds of answers to "why" questions (in Physics II, 3, and Metaphysics V, 2):{{citation |url= |title=Metaphysics |chapter=Book 5, section 1013a |others=Translated by Hugh Tredennick |author=Aristotle}} Aristotle in 23 Volumes, Vols. 17, 18, Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1933, 1989; (hosted at Aristotle also discusses the four "causes" in his Physics, Book B, chapter 3.{{Citation | last=Hankinson | first=R. J. | date=1998 | title=Cause and Explanation in Ancient Greek Thought | publisher=OUP Premium | place=[Oxford] | page=159 | isbn=9780198237457 | format=e-book | doi=10.1093/0199246564.001.0001 | quote=Aristotle famously distinguishes four 'causes' (or causal factors in explanation), the matter, the form, the end, and the agent.}}
  • Matter: a change or movement's material cause, is the aspect of the change or movement which is determined by the material that composes the moving or changing things. For a table, that might be wood; for a statue, that might be bronze or marble.
  • Form: a change or movement's formal cause, is a change or movement caused by the arrangement, shape or appearance of the thing changing or moving. Aristotle says for example that the ratio 2:1, and number in general, is the cause of the octave.
  • Agent: a change or movement's efficient or moving cause, consists of things apart from the thing being changed or moved, which interact so as to be an agency of the change or movement. For example, the efficient cause of a table is a carpenter, or a person working as one, and according to Aristotle the efficient cause of a boy is a father.
  • End or purpose: a change or movement's final cause, is that for the sake of which a thing is what it is. For a seed, it might be an adult plant. For a sailboat, it might be sailing. For a ball at the top of a ramp, it might be coming to rest at the bottom.
The four "causes" are not mutually exclusive. For Aristotle, several answers to the question "why" have to be given to explain a phenomenon and especially the actual configuration of an object.According to Reece (2018): "Aristotle thinks that human action is a species of animal self-movement, and animal self-movement is a species of natural change. Natural changes, although they are not substances and do not have causes in precisely the same way that substances do, are to be explained in terms of the four causes, or as many of them as a given natural change has: The material cause is that out of which something comes to be, or what undergoes change from one state to another; the formal cause, what differentiates something from other things, and serves as a paradigm for its coming to be that thing; the efficient cause, the starting-point of change; the final cause, that for the sake of which something comes about." For example, if asking why a table is such and such, a complete explanation, taking into account the four causes, would sound like this: This table is solid and brown because it is made of wood (matter), it does not collapse because it has four legs of equal length (form), it is as such because a carpenter made it starting from a tree (agent), it has these dimensions because it is to be used by men and women (end).

Meaning of "cause"

In his philosophical writings, Aristotle used the Greek word (wikt:αἴτιος|αἴτιον), aition, a neuter singular form of an adjective. The Greek word had meant, perhaps originally in a "legal" context, what or who is "responsible", mostly but not always in a bad sense of "guilt" or "blame"; alternatively it could mean "to the credit of" someone or something. The appropriation of this word by Aristotle and other philosophers reflects how the Greek experience of legal practice influenced the concern in Greek thought to determine what is responsible.{{Citation | last=Lloyd | first=G. E. R. | author-link=G. E. R. Lloyd | date=1996 | title=Adversaries and authorities: Investigations into ancient Greek and Chinese science | chapter=Causes and correlations | publisher=Cambridge University Press | place=Cambridge | pages=100, 106–107 | isbn=0-521-55695-3 }} The word developed other meanings, including its use in philosophy in a more abstract sense.original text in Posterior Analytics 90a8, 94a20, original text in Met. 1013a on Perseus About a century before Aristotle, the anonymous author of the Hippocratic text On Ancient Medicine had described the essential characteristics of a cause: "We must, therefore, consider the causes of each [medical] condition to be those things which are such that, when they are present, the condition necessarily occurs, but when they change to another combination, it ceases."{{Citation | last=Lloyd | first=G. E. R. | authorlink=G. E. R. Lloyd | date=1979 | title=Magic, Reason and Experience | publisher=Cambridge University Press | place=Cambridge | isbn=0-521-29641-2 | page=54 }} In the present context, Aristotle used the four causes to provide different answers to the question, "because of what?" The four answers to this question illuminate different aspects of how a thing comes into being or of how an event takes place.

{{anchor|Material cause}} Matter

Aristotle considers the material "cause" (hyle)DICTIONARY, Preus, Anthony, 2015, Material cause, Historical Dictionary of Ancient Greek Philosophy, 2nd, Rowman and Littlefield,weblink 978-0810854871, of an object as equivalent to the nature of the raw material out of which the object is composed. (The word "nature" for Aristotle applies to both its potential in the raw material and its ultimate finished form. In a sense this form already existed in the material: see potentiality and actuality.)Whereas modern physics looks to simple bodies, Aristotle's physics instead treated living things as exemplary. However, he felt that simple natural bodies such as earth, fire, air, and water also showed signs of having their own innate sources of motion, change, and rest. Fire, for example, carries things upwards, unless stopped from doing so. Things like beds and cloaks, formed by human artifice, have no innate tendency to become beds or cloaks.Physics 192bIn Aristotelian terminology, material is not the same as substance. Matter has parallels with substance in so far as primary matter serves as the substratum for simple bodies which are not substance: sand and rock (mostly earth), rivers and seas (mostly water), atmosphere and wind (mostly air and then mostly fire below the moon). Only individuals are said to be substance (subjects) in the primary sense. Secondary substance, in a different sense, also applies to man-made artifacts.

{{anchor|Formal cause}} Form

{{see|Platonic realism}}Aristotle considers the formal "cause" (eidos) as describing the pattern or form which when present makes matter into a particular type of thing, which we recognize as being of that particular type.By Aristotle's own account, this is a difficult and controversial concept.{{citation needed|date= September 2016}} It links with theories of forms such as those of Aristotle's teacher, Plato, but in Aristotle's own account (see his Metaphysics), he takes into account many previous writers who had expressed opinions about forms and ideas, but he shows how his own views differ from them.{{Citation | last=Lloyd | first=G. E. R. | author-link=G. E. R. Lloyd | date=1968 | title=Aristotle: The Growth and Structure of His Thought | chapter=The critic of Plato | publisher=Cambridge University Press | place=Cambridge | pages=43–47 | isbn=0-521-09456-9 }}

{{anchor|Efficient cause}} Agent

Aristotle defines the agent or efficient "cause" (kinoun) of an object as that which causes change and motion to start or stop (such as a painter painting a house) (see Aristotle, Physics II 3, 194b29). In many cases, this is simply the thing that brings something about. For example, in the case of a statue, it is the person chiseling away which transforms a block of marble into a statue. Only this one of the four causes is like what an ordinary English-speaker would regard as a cause.

{{anchor|Final cause}} End

Aristotle defines the end, purpose, or final "cause" (telos) as that for the sake of which a thing is done.{{Citation | author=Aristotle | author-link=Aristotle | title=Physics | at=II.3. 194 b 32}} Like the form, this is a controversial type of explanation in science; some have argued for its survival in evolutionary biology, while Ernst Mayr denied that it continued to play a role. It is commonly claimed{{by whom|date=March 2018}} that Aristotle's conception of nature is teleological in the sense that Nature has goals apart from those that humans have. On the other hand, as discussed further below, it has also been claimed that Aristotle thought that a telos can be present without any form of deliberation, consciousness or intelligence. An example of a relevant passage occurs in Physics II.8, where he writes:For example, according to Aristotle, a seed has the eventual adult plant as its end (i.e., as its telos) if and only if the seed would become the adult plant under normal circumstances.Aristotle gives this example in Parts of Animals I.1. In Physics II.9, Aristotle hazards a few arguments that a determination of the end (cause) of a phenomenon is more important than the others. He argues that the end is that which brings it about, so for example "if one defines the operation of sawing as being a certain kind of dividing, then this cannot come about unless the saw has teeth of a certain kind; and these cannot be unless it is of iron."Aristotle, Physics II.9. 200b4–7. According to Aristotle, once a final "cause" is in place, the material, efficient and formal "causes" follow by necessity. However, he recommends that the student of nature determine the other "causes" as well,Aristotle, Physics II.9. and notes that not all phenomena have an end, e.g., chance events.Physics II.5 where chance is opposed to nature, which he has already said acts for ends.Aristotle saw that his biological investigations provided insights into the causes of things, especially into the final cause.}}George Holmes Howison, in The Limits of Evolution (1901), highlights "final causation" in presenting his theory of metaphysics, which he terms "personal idealism", and to which he invites not only man, but all (ideal) life; at p. 39:However, Edward Feser argues, in line with the Aristotelian and Thomistic tradition, that finality has been greatly misunderstood. Indeed, without finality, efficient causality becomes inexplicable. Finality thus understood is not purpose but that end towards which a thing is ordered.Compare: BOOK, Feser, Edward, 2009, Aquinas: A Beginner's Guide,weblink Beginner's Guides, Reprint, Oxford, Oneworld Publications, 2011, 9781780740065, 2018-03-12, [...] three principles are central to Aquinas's general metaphysics [...] the principle of finality is in a sense the most fundamental of them, given that the final cause is 'the cause of causes': for, again in Aquinas's' view an efficient cause can bring an effect in to being only if it is 'directed towards' that effect; and it is ultimately in that sense that the effect is 'contained in' the efficient cause., When a match is rubbed against the side of a matchbox, the effect is not the appearance of an elephant or the sounding of a drum, but fire.Compare: BOOK, Feser, Edward, 2009, Aquinas: A Beginner's Guide,weblink Beginner's Guides, Reprint, Oxford, Oneworld Publications, 2011, 9781780740065, 2018-03-12, A match, for example, reliably generates flame and heat when struck, and never (say) frost and cold, or the smell of lilacs, or thunder., The effect is not arbitrary because the match is ordered towards the end of fireCompare:The match is 'directed towards' the production of fire and heat [...] which is realized through efficient causes.In their theoretical study of organism, more specifically propagating organisation of process, Kauffman et al. remark (p30):

In modern science

{{See also|Teleology#Teleology and science}}Francis Bacon wrote in his Advancement of Learning (1605) that natural science "doth make inquiry, and take consideration of the same natures : but how? Only as to the material and efficient causes of them, and not as to the forms." According to the demands of Bacon, apart from the "laws of nature" themselves, the causes relevant to natural science are only efficient causes and material causes in terms of Aristotle's classification, or to use the formulation which became famous later, all nature visible to human science is matter and motion. Using the terminology of Aristotle, he divided knowledge into physics and metaphysics in The New Organon. From the two kinds of axioms which have been spoken of arises a just division of philosophy and the sciences, taking the received terms (which come nearest to express the thing) in a sense agreeable to my own views. Thus, let the investigation of forms, which are (in the eye of reason at least, and in their essential law) eternal and immutable, constitute Metaphysics; and let the investigation of the efficient cause, and of matter, and of the latent process, and the latent configuration (all of which have reference to the common and ordinary course of nature, not to her eternal and fundamental laws) constitute Physics. And to these let there be subordinate two practical divisions: to Physics, Mechanics; to Metaphysics, what (in a purer sense of the word) I call Magic, on account of the broadness of the ways it moves in, and its greater command over nature. Francis Bacon The New Organon, Book II, Aphorism 9, 1620Bacon's position became the standard one for modern science.


Explanations in terms of final causes remain common in evolutionary biology.Ayala, Francisco (1998). "Teleological explanations in evolutionary biology." Nature's purposes: Analyses of Function and Design in Biology. The MIT Press. Francisco J. Ayala has claimed that teleology is indispensable to biology since the concept of adaptation is inherently teleological. In an appreciation of Charles Darwin published in Nature in 1874, Asa Gray noted "Darwin's great service to Natural Science" lies in bringing back Teleology "so that, instead of Morphology versus Teleology, we shall have Morphology wedded to Teleology". Darwin quickly responded, "What you say about Teleology pleases me especially and I do not think anyone else has ever noticed the point." Francis Darwin and T. H. Huxley reiterate this sentiment. The latter wrote that "..the most remarkable service to the philosophy of Biology rendered by Mr. Darwin is the reconciliation of Teleology and Morphology, and the explanation of the facts of both, which his view offers." James G. Lennox states that Darwin uses the term 'Final Cause' consistently in his Species Notebook, Origin of Species and after.Contrary to the position described by Francisco J. Ayala, Ernst Mayr states that "adaptedness... is a posteriori result rather than an a priori goal-seeking."Mayr, Ernst W. (1992). "The idea of teleology" Journal of the History of Ideas, 53, 117–135. Various commentators view the teleological phrases used in modern evolutionary biology as a type of shorthand. For example, S. H. P. Madrell writes that "the proper but cumbersome way of describing change by evolutionary adaptation [may be] substituted by shorter overtly teleological statements" for the sake of saving space, but that this "should not be taken to imply that evolution proceeds by anything other than from mutations arising by chance, with those that impart an advantage being retained by natural selection."Madrell SHP (1998) "Why are there no insects in the open sea?" The Journal of Experimental Biology 201:2461–2464. However, Lennox states that in evolution as conceived by Darwin, it is true both that evolution is the result of mutations arising by chance and that evolution is teleological in nature.Statements that a species does something "in order to" achieve survival are teleological. The validity or invalidity of such statements depends on the species and the intention of the writer as to the meaning of the phrase "in order to". Sometimes it is possible or useful to rewrite such sentences so as to avoid teleology.BOOK, Reiss, John O., 2009, Not by Design: Retiring Darwin's Watchmaker, University of California Press, Some biology courses have incorporated exercises requiring students to rephrase such sentences so that they do not read teleologically. Nevertheless, biologists still frequently write in a way which can be read as implying teleology even if that is not the intention.

Heidegger on technology

In The Question Concerning Technology, Martin Heidegger describes the four causes as follows:
  1. causa materialis is the material or matter
  2. causa formalis is the form or shape the material or matter enters
  3. causa finalis is the end
  4. causa efficiens is the effect that brings about the finished result.{{sfn|Heidegger|1977|pp=289-290}}
Heidegger explains it thus:}}The educationist David Waddington comments that although the efficient cause, which he identifies as "the craftsman", might be thought the most significant of the four, in his view each of Heidegger's four causes is "equally co-responsible" for producing a craft item, in Heidegger's terms "bringing forth" the thing into existence. Waddington cites Lovitt's description of this bringing forth as "a unified process".JOURNAL, Waddington, David, A Field Guide to Heidegger Understanding {{!, The Question Concerning Technology |journal=Educational Philosophy and Theory |date=2005 |volume=37 |issue=4 |page=568 |url=}}JOURNAL, Lovitt, W., 1972, A Gesprach with Heidegger on Technology, Man and World, 6, 1, 44–62,

Tinbergen's four questions

Tinbergen's four questions, named after the ethologist Nikolaas Tinbergen and based on Aristotle's four causes, are complementary categories of explanations for animal behaviour. They are also commonly referred to as levels of analysis. The four questions are on function, what an adaptation does that is selected for in evolution; phylogeny, the evolutionary history of an organism, revealing its relationships to other species; mechanism, namely the proximate cause of a behaviour, such as the role of testosterone in aggression; and ontogeny, the development of an organism from egg to embryo to adult.JOURNAL, MacDougall-Shackleton, Scott A., 2011-07-27, The levels of analysis revisited, Philosophical Transactions of the Royal Society B: Biological Sciences, 366, 1574, 2076–2085, 10.1098/rstb.2010.0363, 3130367, 21690126, Hladký, V. & Havlíček, J. (2013). Was Tinbergen an Aristotelian? Comparison of Tinbergen's Four Whys and Aristotle's Four Causes. Human Ethology Bulletin, 28(4), 3-11

See also

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  • Cohen, Marc S. "The Four Causes" (Lecture Notes) Accessed March 14, 2006.
  • Falcon, Andrea. Aristotle on Causality (link to section labeled "Four Causes"). Stanford Encyclopedia of Philosophy 2008.
  • BOOK, Martin Heidegger, Heidegger, Martin, Krell, D. F., The Question Concerning Technology, Basic Writings, Harper & Row, 1977, harv,
  • Hennig, Boris. "The Four Causes." Journal of Philosophy 106(3), 2009, 137–60.
  • BOOK, Armand Marie Leroi, Leroi, Armand Marie, The Lagoon: How Aristotle Invented Science, Aristotle's Lagoon, Bloomsbury, 2015, 978-1408836224, harv,
  • Moravcsik, J.M. "Aitia as generative factor in Aristotle's philosophy." Dialogue, 14 : pp 622–638, 1975.
  • JOURNAL, Reece, Bryan C., Aristotle's Four Causes of Action, Australasian Journal of Philosophy, 2018, 10.1080/00048402.2018.1482932,
  • English translation of Study on Phideas, by Pía Figueroa written with theme of Final Cause as per Aristotle.
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