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Theory of forms
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"The Forms" redirects here. For the band, see The Forms (band).
The theory of Forms or theory of Ideas[1][2][3] is Plato's argument that non-physical (but substantial) forms (or ideas) represent the most accurate reality.[4] When used in this sense, the word form or idea is often capitalized.[5] Plato speaks of these entities only through the characters (primarily Socrates) of his dialogues who sometimes suggest that these Forms are the only objects of study that can provide knowledge; thus even apart from the very controversial status of the theory, Plato's own views are much in doubt.[6] However, the theory is considered a classical solution to the problem of universals.
The early Greek concept of form precedes attested philosophical usage and is represented by a number of words mainly having to do with vision, sight, and appearance. The words, εἶδος (eidos) and ἰδέα (idea) come from the Indo-European root *weid-, "see".[7] Eidos (though not idea) is already attested in texts of the Homeric era, the earliest Greek literature. This transliteration and the translation tradition of German and Latin lead to the expression "theory of Ideas." The word is however not the English "idea," which is a mental concept only.
Contents
[hide]
1 Forms
1.1 Terminology
1.2 Intelligible realm and separation of the Forms
1.3 Ideal state
2 Evidence of Forms
2.1 Human perception
2.2 Perfection
3 Criticisms of Platonic Forms
3.1 Self-criticism
3.2 Aristotelian criticism
4 Dialogues that discuss Forms
5 See also
6 Notes
7 Bibliography
8 External links
Forms[edit]
The meaning of the term εἶδος (eidos), "visible form", and related terms μορφή (morphē), "shape",[8] and φαινόμενα (phainomena), "appearances", from φαίνω (phainō), "shine", Indo-European *bhā-,[9] remained stable over the centuries until the beginning of philosophy, when they became equivocal, acquiring additional specialized philosophic meanings. The pre-Socratic philosophers, starting with Thales, noted that appearances change, and began to ask what the thing that changes "really" is. The answer was substance, which stands under the changes and is the actually existing thing being seen. The status of appearances now came into question. What is the form really and how is that related to substance?
Thus, the theory of matter and form (today's hylomorphism) was born. Starting with at least Plato and possibly germinal in some of the presocratics the forms were considered as being "in" something else, which Plato called nature (physis). The latter seemed as carved "wood",[10] ὕλη (hyle) in Greek, corresponding to materia in Latin, from which the English word "matter" is derived,[11] shaped by receiving (or exchanging) forms.
The Forms are expounded upon in Plato's dialogues and general speech, in that every object or quality in reality has a form: dogs, human beings, mountains, colors, courage, love, and goodness. Form answers the question, "What is that?" Plato was going a step further and asking what Form itself is. He supposed that the object was essentially or "really" the Form and that the phenomena were mere shadows mimicking the Form; that is, momentary portrayals of the Form under different circumstances. The problem of universals – how can one thing in general be many things in particular – was solved by presuming that Form was a distinct singular thing but caused plural representations of itself in particular objects. For example, Parmenides states, "Nor, again, if a person were to show that all is one by partaking of one, and at the same time many by partaking of many, would that be very astonishing. But if he were to show me that the absolute one was many, or the absolute many one, I should be truly amazed."[12]:p129 Matter is considered particular in itself. For Plato, forms, such as beauty, are more real than any objects that imitate them. Though the forms are timeless and unchanging, physical things are in a constant change of existence. Where forms are unqualified perfection, physical things are qualified and conditioned.[13]
These Forms are the essences of various objects: they are that without which a thing would not be the kind of thing it is. For example, there are countless tables in the world but the Form of tableness is at the core; it is the essence of all of them.[14] Plato's Socrates held that the world of Forms is transcendent to our own world (the world of substances) and also is the essential basis of reality. Super-ordinate to matter, Forms are the most pure of all things. Furthermore, he believed that true knowledge/intelligence is the ability to grasp the world of Forms with one's mind.[15]
A Form is aspatial (transcendent to space) and atemporal (transcendent to time). Atemporal means that it does not exist within any time period, rather it provides the formal basis for time. It therefore formally grounds beginning, persisting and ending. It is neither eternal in the sense of existing forever, nor mortal, of limited duration. It exists transcendent to time altogether.[16] Forms are aspatial in that they have no spatial dimensions, and thus no orientation in space, nor do they even (like the point) have a location.[17] They are non-physical, but they are not in the mind. Forms are extra-mental (i.e. real in the strictest sense of the word).[18]
A Form is an objective "blueprint" of perfection.[19] The Forms are perfect themselves because they are unchanging. For example, say we have a triangle drawn on a blackboard. A triangle is a polygon with 3 sides. The triangle as it is on the blackboard is far from perfect. However, it is only the intelligibility of the Form "triangle" that allows us to know the drawing on the chalkboard is a triangle, and the Form "triangle" is perfect and unchanging. It is exactly the same whenever anyone chooses to consider it; however, the time is that of the observer and not of the triangle.
Terminology[edit]
In the Allegory of the Cave, the objects that are seen are not real, according to Plato, but literally mimic the real Forms.
The English word "form" may be used to translate two distinct concepts that concerned Plato—the outward "form" or appearance of something, and "Form" in a new, technical nature, that never
...assumes a form like that of any of the things which enter into her; ... But the forms which enter into and go out of her are the likenesses of real existences modelled after their patterns in a wonderful and inexplicable manner....
The objects that are seen, according to Plato, are not real, but literally mimic the real Forms. In the Allegory of the Cave expressed in Republic, the things that are ordinarily perceived in the world are characterized as shadows of the real things, which are not perceived directly. That which the observer understands when he views the world mimics the archetypes of the many types and properties (that is, of universals) of things observed.
Intelligible realm and separation of the Forms[edit]
Plato often invokes, particularly in his dialogues Phaedo, Republic and Phaedrus, poetic language to illustrate the mode in which the Forms are said to exist. Near the end of the Phaedo, for example, Plato describes the world of Forms as a pristine region of the physical universe located above the surface of the Earth (Phd. 109a-111c). In the Phaedrus the Forms are in a "place beyond heaven" (huperouranios topos) (Phdr. 247c ff); and in the Republic the sensible world is contrasted with the intelligible realm (noēton topon) in the famous Allegory of the Cave.
It would be a mistake to take Plato's imagery as positing the intelligible world as a literal physical space apart from this one.[20][21] Plato emphasizes that the Forms are not beings that extend in space (or time), but subsist apart from any physical space whatsoever.[22] Thus we read in the Symposium of the Form of Beauty: "It is not anywhere in another thing, as in an animal, or in earth, or in heaven, or in anything else, but itself by itself with itself," (211b). And in the Timaeus Plato writes: "Since these things are so, we must agree that that which keeps its own form unchangingly, which has not been brought into being and is not destroyed, which neither receives into itself anything else from anywhere else, nor itself enters into anything anywhere, is one thing," (52a, emphasis added).
Ideal state[edit]
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According to Plato, Socrates postulated a world of ideal Forms, which he admitted were impossible to know. Nevertheless, he formulated a very specific description of that world, which did not match his metaphysical principles. Corresponding to the world of Forms is our world, that of the shadows, an imitation of the real one [23] Just as shadows exist only because of the light of a fire, our world exists as, "the offspring of the good".[24] Our world is modeled after the patterns of the Forms. The function of humans in our world is therefore to imitate the ideal world as much as possible which, importantly, includes imitating the good, i.e. acting morally.
Plato lays out much of this theory in the "Republic" where, in an attempt to define Justice, he considers many topics including the constitution of the ideal state. While this state, and the Forms, do not exist on earth, because their imitations do, Plato says we are able to form certain well-founded opinions about them, through a theory called recollection.[25]
The republic is a greater imitation of Justice:[26]
Our aim in founding the state was not the disproportional happiness of any one class,[27] but the greatest happiness of the whole; we thought that in a state ordered with a view to the good of the whole we should be most likely to find justice.
The key to not know how such a state might come into existence is the word "founding" (oikidzomen), which is used of colonization.[clarification needed] It was customary in such instances to receive a constitution from an elected or appointed lawgiver; however in Athens, lawgivers were appointed to reform the constitution from time to time (for example, Draco, Solon). In speaking of reform, Socrates uses the word "purge" (diakathairountes)[28] in the same sense that Forms exist purged of matter.
The purged society is a regulated one presided over by philosophers educated by the state, who maintain three non-hereditary classes[29] as required: the tradesmen (including merchants and professionals), the guardians (militia and police) and the philosophers (legislators, administrators and the philosopher-king). Class is assigned at the end of education, when the state institutes individuals in their occupation. Socrates expects class to be hereditary but he allows for mobility according to natural ability. The criteria for selection by the academics is ability to perceive forms (the analog of English "intelligence") and martial spirit as well as predisposition or aptitude.
The views of Socrates on the proper order of society are certainly contrary to Athenian values of the time and must have produced a shock effect, intentional or not, accounting for the animosity against him. For example, reproduction is much too important to be left in the hands of untrained individuals: "... the possession of women and the procreation of children ... will ... follow the general principle that friends have all things in common, ...."[30] The family is therefore to be abolished and the children – whatever their parentage – to be raised by the appointed mentors of the state.
Their genetic fitness is to be monitored by the physicians: "... he (Asclepius, a culture hero) did not want to lengthen out good-for-nothing lives, or have weak fathers begetting weaker sons – if a man was not able to live in the ordinary way he had no business to cure him ...."[31] Physicians minister to the healthy rather than cure the sick: "... (Physicians) will minister to better natures, giving health both of soul and of body; but those who are diseased in their bodies they will leave to die, and the corrupt and incurable souls they will put an end to themselves."[32] Nothing at all in Greek medicine so far as can be known supports the airy (in the Athenian view) propositions of Socrates. Yet it is hard to be sure of Socrates' real views considering that there are no works written by Socrates himself. There are two common ideas pertaining to the beliefs and character of Socrates: the first being the Mouthpiece Theory where writers use Socrates in dialogue as a mouthpiece to get their own views across. However, since most of what we know about Socrates comes from plays, most of the Platonic plays are accepted as the more accurate Socrates since Plato was a direct student of Socrates.
Perhaps the most important principle is that just as the Good must be supreme so must its image, the state, take precedence over individuals in everything. For example, guardians "... will have to be watched at every age in order that we may see whether they preserve their resolution and never, under the influence either of force or enchantment, forget or cast off their sense of duty to the state."[33] This concept of requiring guardians of guardians perhaps suffers from the Third Man weakness (see below): guardians require guardians require guardians, ad infinitum. The ultimate trusty guardian is missing. Socrates does not hesitate to face governmental issues many later governors have found formidable: "Then if anyone at all is to have the privilege of lying, the rulers of the state should be the persons, and they ... may be allowed to lie for the public good."[34]
Plato's conception of Forms actually differs from dialogue to dialogue, and in certain respects it is never fully explained, so many aspects of the theory are open to interpretation. Forms are first introduced in the Phaedo, but in that dialogue the concept is simply referred to as something the participants are already familiar with, and the theory itself is not developed. Similarly, in the Republic, Plato relies on the concept of Forms as the basis of many of his arguments but feels no need to argue for the validity of the theory itself or to explain precisely what Forms are. Commentators have been left with the task of explaining what Forms are and how visible objects participate in them, and there has been no shortage of disagreement. Some scholars advance the view that Forms are paradigms, perfect examples on which the imperfect world is modeled. Others interpret Forms as universals, so that the Form of Beauty, for example, is that quality that all beautiful things share. Yet others interpret Forms as "stuffs," the conglomeration of all instances of a quality in the visible world. Under this interpretation, we could say there is a little beauty in one person, a little beauty in another—all the beauty in the world put together is the Form of Beauty. Plato himself was aware of the ambiguities and inconsistencies in his Theory of Forms, as is evident from the incisive criticism he makes of his own theory in the Parmenides.
Evidence of Forms[edit]
Plato's main evidence for the existence of Forms is intuitive only and is as follows.
Human perception[edit]
We call both the sky and blue jeans by the same color, blue. However, clearly a pair of jeans and the sky are not the same color; moreover, the wavelengths of light reflected by the sky at every location and all the millions of blue jeans in every state of fading constantly change, and yet we somehow have a consensus of the basic form Blueness as it applies to them. Says Plato:[35][36]
But if the very nature of knowledge changes, at the time when the change occurs there will be no knowledge, and, according to this view, there will be no one to know and nothing to be known: but if that which knows and that which is known exist ever, and the beautiful and the good and every other thing also exist, then I do not think that they can resemble a process of flux, as we were just now supposing.
Plato believed that long before our bodies ever existed, our souls existed and inhabited heaven, where they became directly acquainted with the forms themselves. Real knowledge, to him, was knowledge of the forms. But knowledge of the forms cannot be gained through sensory experience because the forms are not in the physical world. Therefore, our real knowledge of the forms must be the memory of our initial acquaintance with the forms in heaven. Therefore, what we seem to learn is in fact just remembering.[37]
Perfection[edit]
No one has ever seen a perfect circle, nor a perfectly straight line, yet everyone knows what a circle and a straight line are. Plato utilizes the tool-maker's blueprint as evidence that Forms are real:[38]
... when a man has discovered the instrument which is naturally adapted to each work, he must express this natural form, and not others which he fancies, in the material ....
Perceived circles or lines are not exactly circular or straight, and true circles and lines could never be detected since by definition they are sets of infinitely small points. But if the perfect ones were not real, how could they direct the manufacturer?
Criticisms of Platonic Forms[edit]
Self-criticism[edit]
Plato was well aware of the limitations of the theory, as he offered his own criticisms of it in his dialogue Parmenides. There Socrates is portrayed as a young philosopher acting as junior counterfoil to aged Parmenides. To a certain extent it is tongue-in-cheek as the older Socrates will have solutions to some of the problems that are made to puzzle the younger.[citation needed]
The dialogue does present a very real difficulty with the Theory of Forms, which Plato most likely only viewed as problems for later thought. These criticisms were later emphasized by Aristotle in rejecting an independently existing world of Forms. It is worth noting that Aristotle was a pupil and then a junior colleague of Plato; it is entirely possible that the presentation of Parmenides "sets up" for Aristotle; that is, they agreed to disagree.[citation needed]
One difficulty lies in the conceptualization of the "participation" of an object in a form (or Form). The young Socrates conceives of his solution to the problem of the universals in another metaphor, which though wonderfully apt, remains to be elucidated:[39]
Nay, but the idea may be like the day which is one and the same in many places at once, and yet continuous with itself; in this way each idea may be one and the same in all at the same time.
But exactly how is a Form like the day in being everywhere at once? The solution calls for a distinct form, in which the particular instances, which are not identical to the form, participate; i.e., the form is shared out somehow like the day to many places. The concept of "participate", represented in Greek by more than one word, is as obscure in Greek as it is in English. Plato hypothesized that distinctness meant existence as an independent being, thus opening himself to the famous third man argument of Parmenides,[40] which proves that forms cannot independently exist and be participated.[41]
If universal and particulars – say man or greatness – all exist and are the same then the Form is not one but is multiple. If they are only like each other then they contain a form that is the same and others that are different. Thus if we presume that the Form and a particular are alike then there must be another, or third Form, man or greatness by possession of which they are alike. An infinite regression would then result; that is, an endless series of third men. The ultimate participant, greatness, rendering the entire series great, is missing. Moreover, any Form is not unitary but is composed of infinite parts, none of which is the proper Form.
The young Socrates (some may say the young Plato) did not give up the Theory of Forms over the Third Man but took another tack, that the particulars do not exist as such. Whatever they are, they "mime" the Forms, appearing to be particulars. This is a clear dip into representationalism, that we cannot observe the objects as they are in themselves but only their representations. That view has the weakness that if only the mimes can be observed then the real Forms cannot be known at all and the observer can have no idea of what the representations are supposed to represent or that they are representations.
Socrates' later answer would be that men already know the Forms because they were in the world of Forms before birth. The mimes only recall these Forms to memory.[42] The comedian Aristophanes wrote a play, The Clouds, poking fun of Socrates with his head in the clouds.
Aristotelian criticism[edit]
The central image from Raphael's The School of Athens (1509-1511), depicting Plato (left) and Aristotle (right). Plato is depicted pointing upwards, in reference to his belief in the higher Forms, while Aristotle disagrees and points downwards to the here-and-now, in reference to his belief in empiricism.
The topic of Aristotle's criticism of Plato's Theory of Forms is a large one and continues to expand. Rather than quote Plato, Aristotle often summarized. Classical commentaries thus recommended Aristotle as an introduction to Plato. As a historian of prior thought, Aristotle was invaluable, however this was secondary to his own dialectic and in some cases he treats purported implications as if Plato had actually mentioned them, or even defended them. In examining Aristotle's criticism of The Forms, it is helpful to understand Aristotle's own hylomorphic forms, by which he intends to salvage much of Plato's theory.
In the summary passage quoted above[43] Plato distinguishes between real and non-real "existing things", where the latter term is used of substance. The figures that the artificer places in the gold are not substance, but gold is. Aristotle stated that, for Plato, all things studied by the sciences have Form and asserted that Plato considered only substance to have Form. Uncharitably, this leads him to something like a contradiction: Forms existing as the objects of science, but not-existing as non-substance. Scottish philosopher W.D. Ross objects to this as a mischaracterization of Plato.[44]
Plato did not claim to know where the line between Form and non-Form is to be drawn. As Cornford points out,[45] those things about which the young Socrates (and Plato) asserted "I have often been puzzled about these things"[46] (in reference to Man, Fire and Water), appear as Forms in later works. However, others do not, such as Hair, Mud, Dirt. Of these, Socrates is made to assert, "it would be too absurd to suppose that they have a Form."
Ross[44] also objects to Aristotle's criticism that Form Otherness accounts for the differences between Forms and purportedly leads to contradictory forms: the Not-tall, the Not-beautiful, etc. That particulars participate in a Form is for Aristotle much too vague to permit analysis. By one way in which he unpacks the concept, the Forms would cease to be of one essence due to any multiple participation. As Ross indicates, Plato didn't make that leap from "A is not B" to "A is Not-B." Otherness would only apply to its own particulars and not to those of other Forms. For example, there is no Form Not-Greek, only particulars of Form Otherness that somehow suppress Form Greek.
Regardless of whether Socrates meant the particulars of Otherness yield Not-Greek, Not-tall, Not-beautiful, etc., the particulars would operate specifically rather than generally, each somehow yielding only one exclusion.
Plato had postulated that we know Forms through a remembrance of the soul's past lives and Aristotle's arguments against this treatment of epistemology are compelling. For Plato, particulars somehow do not exist, and, on the face of it, "that which is non-existent cannot be known".[47] See Metaphysics III 3–4.[48]
Dialogues that discuss Forms[edit]
The theory is presented in the following dialogues:[49]
Meno
71–81, 85–86: The discovery (or "recollection") of knowledge as latent in the soul, pointing forward to the theory of Forms
Cratylus
389–390: The archetype as used by craftsmen
439–440: The problem of knowing the Forms.
Symposium
210–211: The archetype of Beauty.
Phaedo
73–80: The theory of recollection restated as knowledge of the Forms in soul before birth in the body.
109–111: The myth of the afterlife.
100c: The theory of absolute beauty
Republic
Book III
402–403: Education the pursuit of the Forms.
Book V
472–483: Philosophy the love of the Forms. The philosopher-king must rule.
Books VI–VII
500–517: Philosopher-guardians as students of the Beautiful and Just implement archetypical order.
Metaphor of the Sun: The sun is to sight as Good is to understanding.
Allegory of the Cave: The struggle to understand forms like men in cave guessing at shadows in firelight.
Books IX–X
589–599: The ideal state and its citizens. Extensive treatise covering citizenship, government and society with suggestions for laws imitating the Good, the True, the Just, etc.
Phaedrus
248–250: Reincarnation according to knowledge of the true
265–266: The unity problem in thought and nature.
Parmenides
129–135: Participatory solution of unity problem. Things partake of archetypal like and unlike, one and many, etc. The nature of the participation (Third man argument). Forms not actually in the thing. The problem of their unknowability.
Theaetetus
184–186: Universals understood by mind and not perceived by senses.
Sophist
246–248: True essence a Form. Effective solution to participation problem.
251–259: The problem with being as a Form; if it is participatory then non-being must exist and be being.
Timaeus
27–52: The design of the universe, including numbers and physics. Some of its patterns. Definition of matter.
Philebus
14-18: Unity problem: one and many, parts and whole.
Seventh Letter
342–345: The epistemology of Forms. The Seventh Letter is possibly spurious.
See also[edit]
Archetype
Analogy of the Divided Line
Form of the Good
Hyperuranion
Jungian archetypes
Map–territory relation
Nominalism
Platonic idealism
Plotinus
Problem of universals
Seventh Letter
Substantial form
Plato's unwritten doctrines, for debates over Forms and Plato's higher, esoteric theories
Notes[edit]
Jump up ^ Modern English textbooks and translations prefer "theory of Form" to "theory of Ideas", but the latter has a long and respect tradition starting with Cicero and continuing in German philosophy until present, and some English philosophers prefer this in English too. See W. D. Ross, Plato's Theory of Ideas (1951).
Jump up ^ The name of this aspect of Plato's thought is not modern and has not been extracted from certain dialogues by modern scholars. The term was used at least as early as Diogenes Laertius, who called it (Plato's) "Theory of Ideas:" Πλάτων ἐν τῇ περὶ τῶν ἰδεῶν ὑπολήψει...., "Plato". Lives of Eminent Philosophers. Book III. p. Paragraph 15.
Jump up ^ Plato uses many different words for what is traditionally called form in English translations and idea in German and Latin translations (Cicero). These include idéa, morphē, eîdos, and parádeigma, but also génos, phýsis, and ousía. He also uses expressions such as to x auto, "the x itself" or kath' auto "in itself". See Christian Schäfer: Idee/Form/Gestalt/Wesen, in Platon-Lexikon, Darmstadt 2007, p. 157.
Jump up ^ Forms (usually given a capital F) were properties or essences of things, treated as non-material abstract, but substantial, entities. They were eternal, changeless, supremely real, and independent of ordinary objects that had their being and properties by 'participating' in them. Plato's theory of forms (or ideas)
Jump up ^ "Chapter 28: Form" of The Great Ideas: A Synopticon of Great Books of the Western World (Vol. II). Encyclopædia Britannica (1952), p. 526–542. This source states that Form or Idea get capitalized according to this convention when they refer "to that which is separate from the characteristics of material things and from the ideas in our mind."
Jump up ^ Watt, Stephen (1997). "Plato: Republic". London: Wordsworth Editions: xiv–xvi. ISBN 1-85326-483-0. |contribution= ignored (help)
Jump up ^ "*weid-". American Heritage Dictionary: Fourth Edition: Appendix I. 2000.
Jump up ^ Possibly cognate with Sanskrit bráhman. See Thieme (1952): Bráhman, ZDMG, vol. 102, p. 128. "ZDMG online". .
Jump up ^ "*bhā-". American Heritage Dictionary: Fourth Edition: Appendix I. 2000.
Jump up ^ Liddell, H.G.; Scott, R.; Whiton, J.M. (1891). A Lexicon Abridged From Liddell & Scott's Greek-English Lexicon. Harper. p. 725.
Jump up ^ "matter". American Heritage Dictionary: Fourth Edition. 2000.
Jump up ^ Parmenides.
Jump up ^ Kidder, D. S. and Oppenheim, N. D. (2006), The Intellectual Devotional, p27, Borders Group, Inc, Ann Arbor, ISBN 978-1-60961-205-4.
Jump up ^ Cratylus 389: "For neither does every smith, although he may be making the same instrument for the same purpose, make them all of the same iron. The form must be the same, but the material may vary ...."
Jump up ^ For example, Theaetetus 185d–e: "...the mind in itself is its own instrument for contemplating the common terms that apply to everything." "Common terms" here refers to existence, non-existence, likeness, unlikeness, sameness, difference, unity and number.
Jump up ^ The creation of the universe is the creation of time: "For there were no days and nights and months and years ... but when he (God) constructed the heaven he created them also." — Timaeus, paragraph 37. For the creation God used "the pattern of the unchangeable," which is "that which is eternal." — paragraph 29. Therefore "eternal" – to aïdion, "the everlasting" – as applied to Form means atemporal.
Jump up ^ Space answers to matter, the place-holder of form: "... and there is a third nature (besides Form and form), which is space (chōros), and is eternal (aei "always", certainly not atemporal), and admits not of destruction and provides a home for all created things ... we say of all existence that it must of necessity be in some place and occupy space ...." — Timaeus, paragraph 52. Some readers will have long since remembered that in Aristotle time and space are accidental forms. Plato does not make this distinction and concerns himself mainly with essential form. In Plato, if time and space were admitted to be form, time would be atemporal and space aspatial.
Jump up ^ These terms produced with the English prefix a- are not ancient. For the usage refer to "a- (2)". Online Etymology Dictionary. They are however customary terms of modern metaphysics; for example, see Beck, Martha C. (1999). Plato's Self-Corrective Development of the Concepts of Soul, Form and Immortality in Three Arguments of the Phaedo. Edwin Mellon Press. p. 148. ISBN 0-7734-7950-3. and see Hawley, Dr. Katherine (2001). How Things Persist. Oxford: Clarendon Press. Chapter 1. ISBN 0-19-924913-X.
Jump up ^ For example, Timaeus 28: "The work of the creator, whenever he looks to the unchangeable and fashions the form and nature of his work after an unchangeable pattern, must necessarily be made fair and perfect ...."
Jump up ^ "No sensible man would insist that these things are as I have described them..." (Phd. 114d).
Jump up ^ "there is no Platonic 'elsewhere', similar to the Christian 'elsewhere'." (Iris Murdoch, "Metaphysics as a Guide to Morals" (London, Chatto & Windus 1992) 399).
Jump up ^ Plato's Middle Period Metaphysics and Epistemology
Jump up ^ Cf. the Analogy of the Cave, Rep. 514a–520a.
Jump up ^ Republic, 508b trans. Grube
Jump up ^ cf. Phaedo, Meno, Phaedrus
Jump up ^ Paragraph 420.
Jump up ^ The word is ethnos, "people". For the full range of meanings consult the American Heritage Dictionary online under ethnic.
Jump up ^ Paragraph 399e line 5.
Jump up ^ "Types" (genē) rather than the English economic classes or the favored populations of the real Greek cities.
Jump up ^ Paragraph 424.
Jump up ^ Paragraph 407.
Jump up ^ Paragraph 410.
Jump up ^ Paragraph 412.
Jump up ^ Paragraph 389.
Jump up ^ Cratylus, paragraph 440.
Jump up ^ Aristotle in Metaphysics Α987a.29–b.14 and Μ1078b9–32 says that Plato devised the Forms to answer a weakness in the doctrine of Heraclitus, who held that nothing exists, but everything is in a state of flow. If nothing exists then nothing can be known. It is possible that Plato took the Socratic search for definitions and extrapolated it into a distinct metaphysical theory. Little is known of the historical Socrates' own views, but the theory of Forms is likely a Platonic innovation.
Jump up ^ Kidder, D. S. and Oppenheim, N. D, (2006), The Intellectual Devotional, p27, Borders Group, Inc, Ann Arbor. ISBN 978-1-60961-205-4
Jump up ^ Cratylus, paragraph 389.
Jump up ^ Parmenides 131.
Jump up ^ The name is from Aristotle, who says in Metaphysics A.IX.990b.15: "(The argument) they call the third man." A summary of the argument and the quote from Aristotle can be found in the venerable Grote, George (1880). "Aristotle: Second Edition with Additions". London: John Murray: 559–60 note b. |contribution= ignored (help) (downloadable Google Books). Grote points out that Aristotle lifted this argument from the Parmenides of Plato; certainly, his words indicate the argument was already well-known under that name.
Jump up ^ Analysis of the argument has been going on for quite a number of centuries now and some analyses are complex, technical and perhaps tedious for the general reader. Those who are interested in the more technical analyses can find more of a presentation in Hales, Steven D. (1991). "The Recurring Problem of the Third Man" (PDF). Auslegung. 17 (1): 67–80. and Durham, Michael (1997). "Two Men and the Third Man" (PDF). The Dualist: Undergraduate Journal of Philosophy (Stanford University). 4.
Jump up ^ Plato to a large extent identifies what today is called insight with recollection: "whenever on seeing one thing you conceived another whether like or unlike, there must surely have been an act of recollection?" — Phaedo, paragraph 229. Thus geometric reasoning on the part of persons who know no geometry is not insight but is recollection. He does recognize insight: "... with a sudden flash there shines forth understanding about every problem ..." (with regard to "the course of scrutiny") — The Seventh Letter 344b. Unfortunately the hidden world can in no way be verified in this world and its otherworldness can only be a matter of speculation. Plato was aware of the problem: "How real existence is to be studied or discovered is, I suspect, beyond you and me." — Cratylus, paragraph 439.
Jump up ^ Paragraph 50 a–c, Jowett translation.
^ Jump up to: a b Ross, Chapter XI, initial.
Jump up ^ Pages 82–83.
Jump up ^ Parmenides, paragraph 130c.
Jump up ^ Posterior Analytics 71b.25.
Jump up ^ Book III Chapters 3–4, paragraphs 999a ff.
Jump up ^ See "Chapter 28: Form" of The Great Ideas: A Synopticon of Great Books of the Western World (Vol. II). Encyclopædia Britannica (1952), pp. 536–541.
Bibliography[edit]
Alican, Necip Fikri (2012). Rethinking Plato: A Cartesian Quest for the Real Plato. Amsterdam and New York: Editions Rodopi B.V. ISBN 978-90-420-3537-9.
Alican, Necip Fikri; Thesleff, Holger (2013). "Rethinking Plato's Forms". Arctos: Acta Philologica Fennica. 47: 11–47. ISSN 0570-734X.
Alican, Necip Fikri (2014). "Rethought Forms: How Do They Work?". Arctos: Acta Philologica Fennica. 48: 25–55. ISSN 0570-734X.
Cornford, Francis MacDonald (1957). Plato and Parmenides. New York: The Liberal Arts Press.
Dancy, Russell (2004). Plato's Introduction of Forms. Cambridge: Cambridge University Press. ISBN 978-0-521037-18-1.
Fine, Gail (1993). On Ideas: Aristotle's Criticism of Plato's Theory of Forms. Oxford: Oxford University Press. ISBN 978-0-198235-49-1. OCLC 191827006. Reviewed by Gerson, Lloyd P (1993). "Gail Fine, On Ideas. Aristotle's Criticism of Plato's Theory of Forms". Bryn Mawr Classical Review 04.05.25. Bryn Mawr Classical Review.
Fine, Gail (2003). Plato on Knowledge and Forms: Selected Essays. Oxford: Clarendon Press. ISBN 978-0-199245-59-8.
Patterson, Richard (1985). Image and Reality in Plato's Metaphysics. Indianapolis: Hackett Publishing Company. ISBN 978-0-915145-72-0.
Rodziewicz, Artur (2012). IDEA AND FORM. ΙΔΕΑ ΚΑΙ ΕΙΔΟΣ. On the Foundations of the Philosophy of Plato and the Presocratics (IDEA I FORMA. ΙΔΕΑ ΚΑΙ ΕΙΔΟΣ. O fundamentach filozofii Platona i presokratyków). Wroclaw: WUWR.
Ross, William David (1951). Plato's Theory of Ideas. Oxford: Clarendon Press. ISBN 978-0-837186-35-1.
Thesleff, Holger (2009). Platonic Patterns: A Collection of Studies by Holger Thesleff. Las Vegas: Parmenides Publishing. ISBN 978-1-930972-29-2.
Welton, William A., editor (2002). Plato's Forms: Varieties of Interpretation. Lanham: Rowman & Littlefield. ISBN 978-0-7391-0514-6. CS1 maint: Extra text: authors list (link)
External links[edit]
Look up εἶδος in Wiktionary, the free dictionary.
"Form". Encyclopædia Britannica (11th ed.). 1911.
Cohen, Marc (2006). "Theory of Forms". Philosophy 320: History of Ancient Philosophy. University of Washington Philosophy Department.
"Lesson Three: Plato's Theory of Forms". International Catholic University.
Ruggiero, Tim (July 2002). "Plato And The Theory of Forms". philosophical society.com. Philosophical Society.com.
Silverman, Allan. "Plato's Middle Period Metaphysics and Epistemology". Stanford Encyclopedia of Philosophy.
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Line-out (rugby union)
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Line-out, Toulouse vs. Lyon OU, in a Top 14 match at Stade Ernest-Wallon
A line-out or lineout is a means by which, in rugby union, play is restarted after the ball has gone into touch. When the ball goes out of the field of play, the opposing team is normally awarded a line-out; the exception is after the ball is kicked into touch from a penalty kick, when the team that was awarded the penalty throws into the line-out.
A line-out is one of the two methods of restarting play after the ball has gone into touch, the other is the "quick throw-in" (sometimes referred to as a quick line-out). Due to the specific rules placed on quick throw-ins they are uncommon in a rugby match with the majority of restarts from touch taking the form of a line-out.
Contents
1 Line-outs
1.1 Position of line-out
1.2 Tactics
2 Quick throw-in
3 See also
4 Notes
5 References
Line-outs[edit]
Position of line-out[edit]
Where the line-out is taken depends on the manner in which the ball was played into touch.[1] If it is kicked directly into touch, without first landing in the field-of-play or touching the referee or an opponent who is not in touch, the line-out is formed in line with the spot from where it was kicked, with two exceptions: if the kick was a penalty kick or if the kicker had at least one foot on or behind his own 22-metre line, the line-out is formed at the spot where the ball crossed the touch-line.[1] In all other cases, the line-out is formed at the spot where the ball crossed the touch-line, except that if this spot is within 5 metres of the goal-line, the line-out is formed on the 5-metre line.[1] A line-out is also awarded if a player in possession of the ball crosses or touches the touchline whilst still in possession of the ball.[2]
A player in the line-out will attempt either to catch the ball or to knock it back to a "receiver", a player from their own side (often the scrum-half but sometimes another forward) who is standing close to the line-out on their side of the pitch and in a position to receive such a ball. Each team may have, at most, one receiver at a line-out.[3]
Players not forming part of the line-out, or acting as receiver, must stay at least 10 metres (11 yd) from the line of touch until the line-out is over; the only exception is if the line-out is formed within 10 metres of their goal-line, when they need only retreat behind the goal-line.[3] A line-out ends when the ball, or a player carrying it, leaves the line-out, or, if a ruck or maul is formed at the line-out, when all the feet of all the players forming the ruck or maul move beyond the line of touch.[4]
The line-out was originally contested with both teams jumping unsupported to retrieve the ball. However, lifting in the line-out was later introduced under Law 19 of the World Rugby laws.
Wales (red) win a lineout against England in the 2004 Six Nations Championship. England have chosen not to compete for the ball in the air, but are ready to drive into the ball carrier when he lands.
In this line attacking line-out, France (blue) threatens on the 5 metre line, and the Welsh defence mass to stop the drive. Note that the non-throwing hooker (#2, Red) is obliged to stand within 5 metres of the touch line. Six Nations, 2004
Players must not interfere with the opposition during the line-out.[5] In particular, they must not interfere with or tackle a jumper while his feet are off the ground, or interfere with players supporting him; such actions are deemed to be dangerous play and will be penalised with a penalty kick.[5] Players in the line-out must not close the gap or enter the gap, except in the act of jumping for the ball, nor may they jump or support a jumper before the ball is thrown; such actions are penalised with a free-kick.[5] Penalty kicks and free kicks are awarded 15 metres infield from the touch-line.
If the ball is thrown beyond the 15-metre line, a player from the throwing team who is not taking part in the line-out may run forward to take the ball.[6] If he does so, an opponent may also run forward to contest possession. Players who are taking part in the line-out may move beyond the 15-metre line as soon as the ball leaves the thrower's hands.[6] If, however, a player runs forward or infield and the ball is not thrown beyond the 15-metre line, that player is off-side.[6] The line-out ends when the ball crosses the 15-metre line.[4]
Players from the side not throwing may jump to compete for the ball, though they must be careful not to attract a penalty for interfering with an opposing jumper. Alternatively, they may choose not to contest the line-out but to drive onto the catcher as soon as he returns to the ground. Often, when a team is awarded a line-out close to their opponent's goal-line, they will attempt to form a maul around the catcher and drive over the goal-line to score a try. In such cases, the defending team will often seek to disrupt this tactic by driving in on the catcher, taking him to ground immediately, before a maul can form.
Tactics[edit]
Teams usually employ a line-out code, to ensure that all players on that team know what is planned, who the ball will be thrown to, what that player will do with it, and what follow-up ploy is intended. One player from the throwing team is usually designated to shout the code, and it is particularly important that the thrower should know what the code is, so that he can execute the throw as intended.
Quick throw-in[edit]
A quick throw-in may be taken without waiting for a line-out to be formed.[7] For a quick throw-in to be legal, the ball can not have been touched by any other person (player or non-player), apart from the player taking the throw or the opponent who may have carried the ball into touch and it can only be taken between the point of the ball leaving the field and the thrower's own goal line.[7] If a line-out begins to form before the quick throw-in is taken the throw-in is not permitted.[7] To prevent quick throw-ins, members of the opposing team will often race to the point where the ball went into touch to ensure a line-out is forming. In a quick throw-in the player throwing the ball back into play cannot send the ball forward towards the opponent's goal line, though unlike a line-out the ball may be thrown back in the direction of the player's own goal line.[7]
See also[edit]
Ball back
Offside (rugby)
Notes[edit]
^ Jump up to: a b c "19.1 Throw-in". World Rugby Laws. laws.worldrugby.org. Retrieved 8 September 2017.
Jump up ^ "Touch: Definitions". World Rugby Laws. laws.worldrugby.org. Retrieved 8 September 2017.
^ Jump up to: a b "19.8 Lineout: Deinitions". World Rugby Laws. laws.worldrugby.org. Retrieved 8 September 2017.
^ Jump up to: a b "19.9 Beginning and ending a lineout". World Rugby Laws. laws.worldrugby.org. Retrieved 8 September 2017.
^ Jump up to: a b c "19.10 Options available in a lineout". World Rugby Laws. laws.worldrugby.org. Retrieved 8 September 2017.
^ Jump up to: a b c "19.14 Offside when taking part in the lineout". World Rugby Laws. laws.worldrugby.org. Retrieved 8 September 2017.
^ Jump up to: a b c d "19.2 Quick throw-in". World Rugby Laws. laws.worldrugby.org. Retrieved 8 September 2017.
References[edit]
Wikimedia Commons has media related to Line out (rugby).
"What is a line-out?". BBC. Retrieved 11 July 2013.
"A Beginner's Guide to Rugby Union". world Rugby. Retrieved 13 February 2016.
"Set Pieces". Rugby Football Union. Retrieved 11 July 2013.
Bolton, Paul (24 October 2007). "American hero's rugby legacy". The Daily Telegraph. Retrieved 11 July 2013.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Line-out_(rugby_union)&oldid=834015494"
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