Perfection (other)
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Perfection is a state, variously, of completeness, flawlessness, or supreme excellence. The
term Term may refer to: * Terminology, or term, a noun or compound word used in a specific context, in particular: ** Technical term, part of the specialized vocabulary of a particular field, specifically: *** Scientific terminology, terms used by scie ...
is used to designate a range of diverse, if often kindred,
concept Concepts are defined as abstract ideas. They are understood to be the fundamental building blocks of the concept behind principles, thoughts and beliefs. They play an important role in all aspects of cognition. As such, concepts are studied by s ...
s. These have historically been addressed in a number of discrete
discipline Discipline refers to rule following behavior, to regulate, order, control and authority. It may also refer to punishment. Discipline is used to create habits, routines, and automatic mechanisms such as blind obedience. It may be inflicted on ot ...
s, notably mathematics,
physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which rel ...
, chemistry,
ethics Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior".''Internet Encyclopedia of Philosophy'' The field of ethics, along with aesthetics, concerns ...
,
aesthetics Aesthetics, or esthetics, is a branch of philosophy Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, Epistemology, knowledge, Ethics, values, Philosophy of ...
,
ontology In metaphysics, ontology is the philosophical study of being, as well as related concepts such as existence, becoming, and reality. Ontology addresses questions like how entities are grouped into categories and which of these entities ...
, and
theology Theology is the systematic study of the nature of the divine and, more broadly, of religious belief. It is taught as an academic discipline, typically in universities and seminaries. It occupies itself with the unique content of analyzing th ...
.


Term and concept

The form of the word long fluctuated in various languages. The
English language English is a West Germanic language of the Indo-European language family, with its earliest forms spoken by the inhabitants of early medieval England. It is named after the Angles, one of the ancient Germanic peoples that migrated to t ...
had the alternates, "perfection" and the
Biblical The Bible (from Koine Greek , , 'the books') is a collection of religious texts or scriptures that are held to be sacred in Christianity, Judaism, Samaritanism, and many other religions. The Bible is an anthologya compilation of texts of a ...
"perfectness." Tatarkiewicz, "Perfection: the Term and the Concept," ''Dialectics and Humanism'', vol. VI, no. 4 (autumn 1979), p. 5. The word "perfection" derives from the
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power ...
"'' perfectio''", and "perfect" — from "''
perfectus Saint Perfectus (Santo Perfecto) (died 18 April 850) was one of the Martyrs of Córdoba whose martyrdom was recorded by Saint Eulogius in the '' Memoriale sanctorum''. He was born in Córdoba when the area was under the control of the Moors (th ...
''". These expressions in turn come from "'' perficio''" — "to finish", "to bring to an end". "''Perfectio''(n)" thus literally means "a finishing", and "perfect''(us)''" — "finished", much as in
grammatical In linguistics, grammaticality is determined by the conformity to language usage as derived by the grammar of a particular speech variety. The notion of grammaticality rose alongside the theory of generative grammar, the goal of which is to form ...
parlance ("
perfect Perfect commonly refers to: * Perfection, completeness, excellence * Perfect (grammar), a grammatical category in some languages Perfect may also refer to: Film * Perfect (1985 film), ''Perfect'' (1985 film), a romantic drama * Perfect (2018 f ...
"). Many modern languages have adopted their terms for the concept of "perfection" from the Latin: the
French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ...
"''
parfait Parfait (, also , ; meaning "perfect") is either of two types of dessert. In France, where the dish originated, parfait is made by boiling cream, egg, sugar and syrup to create a custard-like puree. The American version consists of layers ...
''" and "''perfection''"; the
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...
"''
perfetto ''Perfetto'' ( English: "Perfect") is the thirteenth studio album by Italian singer-songwriter Eros Ramazzotti, released by Universal Music on 12 May 2015. Track listing Credits * A&R - Fausto Donato * Producer - Eros Ramazzotti, Claudio Gu ...
''" and "'' perfezione''"; the
Spanish Spanish might refer to: * Items from or related to Spain: ** Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Ca ...
"''
perfecto Perfecto may refer to: People * Gregorio Perfecto (1891–1949), Filipino journalist, politician and jurist * Mariano Perfecto (1853–1913), Filipino politician, writer, and father of Gregorio Perfecto * Martín Perfecto de Cos (1800–1854), 19 ...
''" and "'' perfección''"; the
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national id ...
"perfect" and "perfection"; the
Russian Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...
"'' совершенный''" (sovyershenniy) and "''совершенcтво''" (sovyershenstvo); the
Croatian Croatian may refer to: * Croatia *Croatian language *Croatian people *Croatians (demonym) See also * * * Croatan (disambiguation) * Croatia (disambiguation) * Croatoan (disambiguation) * Hrvatski (disambiguation) * Hrvatsko (disambiguation) * S ...
and
Serbian Serbian may refer to: * someone or something related to Serbia, a country in Southeastern Europe * someone or something related to the Serbs, a South Slavic people * Serbian language * Serbian names See also * * * Old Serbian (disambigua ...
"''savršen''" and "''savršenstvo''"; the
Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places *Czech, ...
"''dokonalost''"; the Slovak "''dokonaly''" and "''dokonalost''"; the
Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...
"''doskonały''" and "''doskonałość''". The genealogy of the concept of "perfection" reaches back beyond Latin, to
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
. The Greek equivalent of the Latin "''perfectus''" was "''teleos''". The latter Greek expression generally had concrete referents, such as a perfect physician or flutist, a perfect comedy or a perfect social system. Hence the Greek "''teleiotes''" was not yet so fraught with abstract and superlative associations as would be the Latin "''perfectio''" or the modern "perfection". To avoid the latter associations, the Greek term has generally been translated as "
complete Complete may refer to: Logic * Completeness (logic) * Completeness of a theory, the property of a theory that every formula in the theory's language or its negation is provable Mathematics * The completeness of the real numbers, which implies ...
ness" rather than "perfection". The oldest definition of "perfection", fairly precise and distinguishing the shades of the concept, goes back to
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical Greece, Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatet ...
. In Book ''Delta'' of the ''Metaphysics'', he distinguishes three meanings of the term, or rather three shades of one meaning, but in any case three different concepts. That is perfect: :1. which is complete — which contains all the requisite parts; :2. which is so good that nothing of the kind could be better; :3. which has attained its purpose.Tatarkiewicz, "Perfection: the Term and the Concept," ''Dialectics and Humanism'', vol. VI, no. 4 (autumn 1979), p. 7. The first of these concepts is fairly well subsumed within the second. Between those two and the third, however, there arises a duality in concept. This duality was expressed by
Thomas Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known wi ...
, in the ''
Summa Theologica The ''Summa Theologiae'' or ''Summa Theologica'' (), often referred to simply as the ''Summa'', is the best-known work of Thomas Aquinas (1225–1274), a scholastic theologian and Doctor of the Church. It is a compendium of all of the main th ...
'', when he distinguished a twofold perfection: when a thing is perfect in itself — as he put it, in its ''substance''; and when it perfectly serves its ''purpose''. The variants on the concept of perfection would have been quite of a piece for two thousand years, had they not been confused with other, kindred concepts. The chief of these was the concept of that which is the best: in Latin, "''excellentia''" ("excellence"). In
antiquity Antiquity or Antiquities may refer to: Historical objects or periods Artifacts *Antiquities, objects or artifacts surviving from ancient cultures Eras Any period before the European Middle Ages (5th to 15th centuries) but still within the histo ...
, "''excellentia''" and "''perfectio''" made a pair; thus, for example, dignitaries were called "''perfectissime''", just as they are now called "excellency." Nevertheless, these two expression of high regard differ fundamentally: "''excellentia''" is a distinction among many, and implies comparison; while "''perfectio''" involves no comparison, and if something is deemed perfect, then it is deemed so in itself, without comparison to other things.
Gottfried Wilhelm Leibniz Gottfried Wilhelm (von) Leibniz . ( – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat. He is one of the most prominent figures in both the history of philosophy and the history of mat ...
, who thought much about perfection and held the world to be the best of possible worlds, did not claim that it was perfect.


Paradoxes

The parallel existence of two concepts of perfection, one strict ("perfection", as such) and the other loose ("excellence"), has given rise, perhaps since
antiquity Antiquity or Antiquities may refer to: Historical objects or periods Artifacts *Antiquities, objects or artifacts surviving from ancient cultures Eras Any period before the European Middle Ages (5th to 15th centuries) but still within the histo ...
but certainly since the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass id ...
, to a singular
paradox A paradox is a logically self-contradictory statement or a statement that runs contrary to one's expectation. It is a statement that, despite apparently valid reasoning from true premises, leads to a seemingly self-contradictory or a logically u ...
: that the greatest perfection is imperfection. This was formulated by
Lucilio Vanini Lucilio Vanini (15859 February 1619), who, in his works, styled himself Giulio Cesare Vanini, was an Italian philosopher, physician and free-thinker, who was one of the first significant representatives of intellectual libertinism. He was am ...
(1585–1619), who had a precursor in the 16th-century writer
Joseph Juste Scaliger Joseph Justus Scaliger (; 5 August 1540 – 21 January 1609) was a French Calvinist religious leader and scholar, known for expanding the notion of classical history from Greek and Ancient Roman history to include Persian, Babylonian, Jewish ...
, and they in turn referred to the ancient philosopher
Empedocles Empedocles (; grc-gre, Ἐμπεδοκλῆς; , 444–443 BC) was a Greek pre-Socratic philosopher and a native citizen of Akragas, a Greek city in Sicily. Empedocles' philosophy is best known for originating the cosmogonic theory of the ...
. Their argument, as given by the first two, was that if the world were perfect, it could not improve and so would lack "true perfection", which depends on progress. To
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical Greece, Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatet ...
, "perfect" meant "complete" ("nothing to add or subtract"). To Empedocles, according to Vanini, perfection depends on incompleteness ("''perfectio propter imperfectionem''"), since the latter possesses a potential for development and for complementing with new characteristics ("''perfectio complementii''"). This view relates to the baroque
esthetic Aesthetics, or esthetics, is a branch of philosophy that deals with the nature of beauty and taste, as well as the philosophy of art (its own area of philosophy that comes out of aesthetics). It examines aesthetic values, often expressed th ...
of Vanini and
Marin Mersenne Marin Mersenne, OM (also known as Marinus Mersennus or ''le Père'' Mersenne; ; 8 September 1588 – 1 September 1648) was a French polymath whose works touched a wide variety of fields. He is perhaps best known today among mathematicians for ...
: the perfection of an art work consists in its forcing the recipient to be active—to complement the art work by an effort of mind and imagination. The
paradox A paradox is a logically self-contradictory statement or a statement that runs contrary to one's expectation. It is a statement that, despite apparently valid reasoning from true premises, leads to a seemingly self-contradictory or a logically u ...
of perfection—that imperfection is perfect—applies not only to human affairs, but to
technology Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, scie ...
. Thus, irregularity in
semiconductor A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. ...
crystal A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macr ...
s (an imperfection, in the form of
contaminant Contamination is the presence of a constituent, impurity, or some other undesirable element that spoils, corrupts, infects, makes unfit, or makes inferior a material, physical body, natural environment, workplace, etc. Types of contamination Wi ...
s) is requisite for the production of semiconductors. The solution to the apparent paradox lies in a distinction between two concepts of "perfection": that of regularity, and that of
utility As a topic of economics, utility is used to model worth or value. Its usage has evolved significantly over time. The term was introduced initially as a measure of pleasure or happiness as part of the theory of utilitarianism by moral philosoph ...
. Imperfection is perfect in technology, in the sense that irregularity is useful.


Perfect numbers

Perfect number In number theory, a perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. For instance, 6 has divisors 1, 2 and 3 (excluding itself), and 1 + 2 + 3 = 6, so 6 is a perfect number. T ...
s have been distinguished ever since the
ancient Greeks Ancient Greece ( el, Ἑλλάς, Hellás) was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity ( AD 600), that comprised a loose collection of cult ...
called them "''teleioi''." There was, however, no consensus among the Greeks as to which numbers were "perfect" or why. A view that was shared by
Plato Plato ( ; grc-gre, Πλάτων ; 428/427 or 424/423 – 348/347 BC) was a Greek philosopher born in Athens during the Classical period in Ancient Greece. He founded the Platonist school of thought and the Academy, the first institutio ...
held that 10 was a perfect number. Tatarkiewicz, "Perfection in the Sciences. I. Perfect Numbers", ''Dialectics and Humanism'', vol. VII, no. 2 (spring 1980), p. 137.
Mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...
s, including the mathematician-philosopher
Pythagoreans Pythagoreanism originated in the 6th century BC, based on and around the teachings and beliefs held by Pythagoras and his followers, the Pythagoreans. Pythagoras established the first Pythagorean community in the ancient Greek colony of Kroton, ...
, proposed as a perfect number, the number 6. The number 10 was thought perfect because there are 10 fingers to the two hands. The number 6 was believed perfect for being divisible in a special way: a sixth part of that number constitutes unity; a third is two; a half — three; two-thirds ( el, dimoiron) is four; five-sixths (''pentamoiron'') is five; six is the perfect whole. The ancients also considered 6 a perfect number because the human foot constituted one-sixth the height of a man, hence the number 6 determined the height of the human body. Thus both numbers, 6 and 10, were credited with perfection, both on purely mathematical grounds and on grounds of their relevance in nature. Belief in the "perfection" of certain numbers survived
antiquity Antiquity or Antiquities may refer to: Historical objects or periods Artifacts *Antiquities, objects or artifacts surviving from ancient cultures Eras Any period before the European Middle Ages (5th to 15th centuries) but still within the histo ...
, but this quality came to be ascribed to other numbers as well. The perfection of the number 3 actually became
proverb A proverb (from la, proverbium) is a simple and insightful, traditional saying that expresses a perceived truth based on common sense or experience. Proverbs are often metaphorical and use formulaic language. A proverbial phrase or a proverbial ...
ial: "''omne trinum perfectum''" ( la, all threes are perfect). Another number, 7, found a devotee in the 6th-century
Pope Gregory I Pope Gregory I ( la, Gregorius I; – 12 March 604), commonly known as Saint Gregory the Great, was the bishop of Rome from 3 September 590 to his death. He is known for instigating the first recorded large-scale mission from Rome, the Gregori ...
(Gregory the Great), who favored it on grounds similar to those of the Greek mathematicians who had seen 6 as a perfect number, and in addition for some reason he associated the number 7 with the concept of "
eternity Eternity, in common parlance, means infinite time that never ends or the quality, condition, or fact of being everlasting or eternal. Classical philosophy, however, defines eternity as what is timeless or exists outside time, whereas sempitern ...
." The
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
, however, championed the perfection of 6:
Augustine Augustine of Hippo ( , ; la, Aurelius Augustinus Hipponensis; 13 November 354 – 28 August 430), also known as Saint Augustine, was a theologian and philosopher of Berber origin and the bishop of Hippo Regius in Numidia, Roman North Af ...
and
Alcuin Alcuin of York (; la, Flaccus Albinus Alcuinus; 735 – 19 May 804) – also called Ealhwine, Alhwin, or Alchoin – was a scholar, clergyman, poet, and teacher from York, Northumbria. He was born around 735 and became the student o ...
wrote that
God In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
had created the world in 6 days because that was the perfect number. The Greek mathematicians had regarded as perfect that number which equals the
sum Sum most commonly means the total of two or more numbers added together; see addition. Sum can also refer to: Mathematics * Sum (category theory), the generic concept of summation in mathematics * Sum, the result of summation, the additio ...
of its
divisor In mathematics, a divisor of an integer n, also called a factor of n, is an integer m that may be multiplied by some integer to produce n. In this case, one also says that n is a multiple of m. An integer n is divisible or evenly divisible by ...
s that are smaller than itself. Such a number is neither 3 nor 7 nor 10, but 6, for 1 + 2 + 3 = 6. But there are more numbers that show this property, such as 28, which = 1 + 2 + 4 + 7 + 14. It became customary to call such numbers "perfect."
Euclid Euclid (; grc-gre, Εὐκλείδης; BC) was an ancient Greek mathematician active as a geometer and logician. Considered the "father of geometry", he is chiefly known for the ''Elements'' treatise, which established the foundations of ...
gave a formula for (even) "perfect" numbers: :N''p'' = 2''p''−1 (2''p'' − 1) where ''p'' and 2''p'' − 1 are
prime number A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only way ...
s.
Euclid Euclid (; grc-gre, Εὐκλείδης; BC) was an ancient Greek mathematician active as a geometer and logician. Considered the "father of geometry", he is chiefly known for the ''Elements'' treatise, which established the foundations of ...
had listed the first four perfect numbers: 6; 28; 496; and 8128. A manuscript of 1456 gave the fifth perfect number: 33,550,336. Gradually mathematicians found further perfect numbers (which are very rare). In 1652 the
Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...
polymath A polymath ( el, πολυμαθής, , "having learned much"; la, homo universalis, "universal human") is an individual whose knowledge spans a substantial number of subjects, known to draw on complex bodies of knowledge to solve specific pro ...
Jan Brożek Jan Brożek (''Ioannes Broscius'', ''Joannes Broscius'' or ''Johannes Broscius''; 1 November 1585 – 21 November 1652) was a Polish polymath: a mathematician, astronomer, physician, poet, writer, musician and rector of the Kraków Academy. Life ...
noted that there was no perfect number between 104 and 107.Tatarkiewicz, "Perfection in the Sciences. I. Perfect Numbers", ''Dialectics and Humanism'', vol. VII, no. 2 (spring 1980), p. 138. Despite over 2,000 years of study, it still is not known whether there exist infinitely many perfect numbers; or whether there are any odd ones. Today the term "perfect number" is merely historic in nature, used for the sake of tradition. These peculiar numbers had received the name on account of their analogy to the construction of man, who was held to be
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
's most perfect creation, and above all on account of their own peculiar regularity. Thus, they had been so named on the same grounds as perfect objects in nature, and perfectly proportioned edifices and statues created by man; the numbers had come to be called "perfect" in order to emphasize their special regularity. The
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...
s had named these numbers "perfect" in the same sense in which philosophers and
artist An artist is a person engaged in an activity related to creating art, practicing the arts, or demonstrating an art. The common usage in both everyday speech and academic discourse refers to a practitioner in the visual arts only. However, t ...
s used the word. Jamblich (''In Nicomachi arithmeticam'', Leipzig, 1894) states that the
Pythagoreans Pythagoreanism originated in the 6th century BC, based on and around the teachings and beliefs held by Pythagoras and his followers, the Pythagoreans. Pythagoras established the first Pythagorean community in the ancient Greek colony of Kroton, ...
had called the number 6 "marriage", "health", and "beauty", on account of the
harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. Howev ...
and accord of that number. The perfect numbers early on came to be treated as the measure of other numbers: those in which the sum of the divisors is greater than the number itself, as in 12, have — since as early as
Theon of Smyrna Theon of Smyrna ( el, Θέων ὁ Σμυρναῖος ''Theon ho Smyrnaios'', ''gen.'' Θέωνος ''Theonos''; fl. 100 CE) was a Greek philosopher and mathematician, whose works were strongly influenced by the Pythagorean school of thought. Hi ...
, ca. 130 A.D. — been called "redundant" ( la, redundantio), "more than perfect" (''plus quam perfecti''), or "
abundant number In number theory, an abundant number or excessive number is a number for which the sum of its proper divisors is greater than the number. The integer 12 is the first abundant number. Its proper divisors are 1, 2, 3, 4 and 6 for a total of 16. The ...
s", and those the sum of whose divisors is smaller, as in 8, have been called " deficient numbers" (''deficientes''). As of 7 December 2018, 51 perfect numbers had been identified.


Physics and chemistry

A variety of
physical Physical may refer to: *Physical examination In a physical examination, medical examination, or clinical examination, a medical practitioner examines a patient for any possible medical signs or symptoms of a medical condition. It generally cons ...
and
chemical A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., wit ...
concept Concepts are defined as abstract ideas. They are understood to be the fundamental building blocks of the concept behind principles, thoughts and beliefs. They play an important role in all aspects of cognition. As such, concepts are studied by s ...
s include, in their names, the word "perfect." Physicists designate as a '' perfectly rigid'' body, one that "is not deformed by forces applied to it", in full awareness that this is a fictitious body, that no such body exists in
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
. The concept is an ''
ideal Ideal may refer to: Philosophy * Ideal (ethics), values that one actively pursues as goals * Platonic ideal, a philosophical idea of trueness of form, associated with Plato Mathematics * Ideal (ring theory), special subsets of a ring considere ...
construct Construct, Constructs or constructs may refer to: * Construct (information technology), a collection of logic components forming an interactive agent or environment ** Language construct * ''Construct'' (album), a 2013 album by Dark Tranquillity ...
''. Tatarkiewicz, "Perfection in the Sciences. II. Perfection in Physics and Chemistry", ''Dialectics and Humanism'', vol. VII, no. 2 (spring 1980), p. 139. A '' perfectly plastic'' body is one that is deformed infinitely at a constant load corresponding to the body's limit of plasticity: this is a physical ''
model A model is an informative representation of an object, person or system. The term originally denoted the plans of a building in late 16th-century English, and derived via French and Italian ultimately from Latin ''modulus'', a measure. Models c ...
'', not a body observed in nature. A '' perfectly black'' body would be one that absorbed completely, radiation falling upon it — that is, a body with a coefficient of absorption equal to unity. A
crystal A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macr ...
is perfect when its physically equivalent walls are equally developed; it has a perfect structure when it answers the requirements of spatial symmetry and is free of structural defects, dislocation, lacunae and other flaws. A ''
perfect fluid In physics, a perfect fluid is a fluid that can be completely characterized by its rest frame mass density \rho_m and ''isotropic'' pressure ''p''. Real fluids are "sticky" and contain (and conduct) heat. Perfect fluids are idealized models in whi ...
'' is one that is incompressible and non-viscous — this, again, is an
ideal fluid In physics, a perfect fluid is a fluid that can be completely characterized by its rest frame mass density \rho_m and ''isotropic'' pressure ''p''. Real fluids are "sticky" and contain (and conduct) heat. Perfect fluids are idealized models in whi ...
that does not exist in nature. A ''
perfect gas In physics and engineering, a perfect gas is a theoretical gas model that differs from real gases in specific ways that makes certain calculations easier to handle. In all perfect gas models, intermolecular forces are neglected. This means that one ...
'' is one whose molecules do not interact with each other and which have no volume of their own. Such a gas is ''fictitious'', just as are perfectly solid, perfectly rigid, perfectly plastic and perfectly black bodies. They are termed "perfect" in the ''strict'' (non-metaphorical) sense of the word. These are all concepts that are necessary in physics, insofar as they are limiting, ideal, fictitious — insofar as they set the extreme which nature may at the most approach. In a ''looser'' sense, real things are called "perfect" if they approximate perfection more or less closely, though they be not, strictly speaking, perfect. The relation of these ''perfect'' bodies to ''real'' bodies may be illustrated by the relation of a perfect gas to a real one. The equation of state of a perfect gas is a first approximation to a quantum equation of state that results from statistical physics. Thus, the equation of state of a real gas within classical limits assumes the form of the equation of state of a perfect gas. That is, the equation of state of a perfect gas describes an ideal gas (comprising points, that is, dimensionless molecules that do not act upon one another). The perfect gas equation arose from the work of
Robert Boyle Robert Boyle (; 25 January 1627 – 31 December 1691) was an Anglo-Irish natural philosopher, chemist, physicist, alchemist and inventor. Boyle is largely regarded today as the first modern chemist, and therefore one of the founders of ...
,
Edme Mariotte Edme Mariotte (; ; c. 162012 May 1684) was a French physicist and priest (abbé). He is particularly well known for formulating Boyle's law independently of Robert Boyle. Mariotte is also credited with designing the first Newton's cradle. Biogr ...
and
Joseph Louis Gay-Lussac Joseph Louis Gay-Lussac (, , ; 6 December 1778 – 9 May 1850) was a French chemist and physicist. He is known mostly for his discovery that water is made of two parts hydrogen and one part oxygen (with Alexander von Humboldt), for two laws ...
, who, in studying the properties of
real gas Real gases are nonideal gases whose molecules occupy space and have interactions; consequently, they do not adhere to the ideal gas law. To understand the behaviour of real gases, the following must be taken into account: *compressibility effects ...
es, found formulas applicable not to these but to an ideal,
perfect gas In physics and engineering, a perfect gas is a theoretical gas model that differs from real gases in specific ways that makes certain calculations easier to handle. In all perfect gas models, intermolecular forces are neglected. This means that one ...
.


Ethics

The ''
ethical Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of morality, right and wrong action (philosophy), behavior".''Internet Encyclopedia of Philosophy'' The field of ethics, alo ...
'' question of perfection concerns not whether man ''is'' perfect, but whether he ''should'' be. And if he ''should'' be, then how is this to be attained? Tatarkiewicz, "Moral Perfection," ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 117.
Plato Plato ( ; grc-gre, Πλάτων ; 428/427 or 424/423 – 348/347 BC) was a Greek philosopher born in Athens during the Classical period in Ancient Greece. He founded the Platonist school of thought and the Academy, the first institutio ...
seldom actually used the term "perfection", but the concept of "
good In most contexts, the concept of good denotes the conduct that should be preferred when posed with a choice between possible actions. Good is generally considered to be the opposite of evil and is of interest in the study of ethics, morality, p ...
", central to his philosophy, was tantamount to "perfection". He believed that approximation to the idea of perfection makes people perfect. Soon after, the
Stoics Stoicism is a school of Hellenistic philosophy founded by Zeno of Citium in Athens in the early 3rd century BCE. It is a philosophy of personal virtue ethics informed by its system of logic and its views on the natural world, asserting th ...
introduced the concept of perfection into ethics expressly, describing it as
harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. Howev ...
— with
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
,
reason Reason is the capacity of Consciousness, consciously applying logic by Logical consequence, drawing conclusions from new or existing information, with the aim of seeking the truth. It is closely associated with such characteristically human activ ...
, man himself. They held that such harmony—such perfection—was attainable for anyone. Plato and the Stoics had made perfection a
philosophical Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, knowledge, values, mind, and language. Such questions are often posed as problems to be studied or resolved. Som ...
watchword. Soon it would be transformed, in
Christianity Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth Jesus, likely from he, יֵשׁוּעַ, translit=Yēšūaʿ, label=Hebrew/Aramaic ( AD 30 or 33), also referred to as Jesu ...
, into a
religious Religion is usually defined as a social- cultural system of designated behaviors and practices, morals, beliefs, worldviews, texts, sanctified places, prophecies, ethics, or organizations, that generally relates humanity to supernatural, ...
one. The Christian doctrine of perfection is in the Gospels as well as elsewhere in the
Bible The Bible (from Koine Greek , , 'the books') is a collection of religious texts or scriptures that are held to be sacred in Christianity, Judaism, Samaritanism, and many other religions. The Bible is an anthologya compilation of texts o ...
.
Matthew Matthew may refer to: * Matthew (given name) * Matthew (surname) * ''Matthew'' (ship), the replica of the ship sailed by John Cabot in 1497 * ''Matthew'' (album), a 2000 album by rapper Kool Keith * Matthew (elm cultivar), a cultivar of the Chi ...
5:48 enjoins: "Be ye therefore perfect, even as your Father which is in heaven is perfect." Early Christian writings, especially
Paul Paul may refer to: *Paul (given name), a given name (includes a list of people with that name) * Paul (surname), a list of people People Christianity * Paul the Apostle (AD c.5–c.64/65), also known as Saul of Tarsus or Saint Paul, early Chr ...
's, are replete with calls to perfection. Many of these are collected in a discourse by
St. Augustine Augustine of Hippo ( , ; la, Aurelius Augustinus Hipponensis; 13 November 354 – 28 August 430), also known as Saint Augustine, was a theologian and philosopher of Berber origin and the bishop of Hippo Regius in Numidia, Roman North Af ...
, ''De perfectione iustitiae hominis''. They begin already with the
Old Testament The Old Testament (often abbreviated OT) is the first division of the Christian biblical canon, which is based primarily upon the 24 books of the Hebrew Bible or Tanakh, a collection of ancient religious Hebrew writings by the Israelites. The ...
: "Thou shalt be perfect with the Lord thy God." (''
Deuteronomy Deuteronomy ( grc, Δευτερονόμιον, Deuteronómion, second law) is the fifth and last book of the Torah (in Judaism), where it is called (Hebrew: hbo, , Dəḇārīm, hewords Moses.html" ;"title="f Moses">f Moseslabel=none) and th ...
'' 18:13.) Elsewhere, synonyms for "perfection" are "undefiled", "without rebuke", "without blemish", "blameless", "holy", "righteous", "unblamable", "unreprovable".Tatarkiewicz, "Moral Perfection", ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 118. Augustine explains that not only that man is properly termed perfect and without blemish who is already perfect, but also he who ''strives'' unreservedly after perfection. This is a broader concept, of ''approximate'' perfection, resembling that used in the
exact sciences The exact sciences, sometimes called the exact mathematical sciences, are those sciences "which admit of absolute precision in their results"; especially the mathematical sciences. Examples of the exact sciences are mathematics, optics, astron ...
. The first ancient and Christian perfection was not very remote from modern ''self-perfection''.
St. Ambrose Ambrose of Milan ( la, Aurelius Ambrosius; ), venerated as Saint Ambrose, ; lmo, Sant Ambroeus . was a theologian and statesman who served as Bishop of Milan from 374 to 397. He expressed himself prominently as a public figure, fiercely promot ...
in fact wrote about ''degrees'' of perfection ("''gradus piae perfectionis''"). Along with the idea of perfection, Holy Scripture conveyed doubt as to whether perfection was ''attainable'' for man. According to First Epistle of John, 1 John 1:8, "If we say that we have no sin, we deceive ourselves, and the truth is not in us." Similarly Jesus said in Matthew 19:17: "And he said unto him, Why callest thou me good? there is none good but one, that is, God..."; while Jesus does not deny that he himself is good, he does call into question the idea that anyone but God can even be good, let alone perfect. Thus St. Jerome wrote: "''Perfectio vera in coelestibus''" — true perfection is to be found only in heaven. As early as the 5th century CE, two distinct views on perfection had arisen within the Church: that it was attainable by man on earth by his own powers; and, that it may come to pass only by special divine grace. The first view, which was championed by Pelagius, was condemned in 417 CE; the second view, which was championed by St. Augustine, prevailed at the very beginning of the 5th century and became authoritative.Tatarkiewicz, "Moral Perfection", ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 119. Still, the Church did not condemn the writings of the Pseudo-Dionysius the Areopagite, Pseudo-Areopagite, purportedly the first bishop of Athens, voicing a ''natural'' possibility for man to rise to perfection, to the contemplation of God. And so, for centuries, two views contended within the Church. Even as, for the ancient philosophers, the essence of perfection had been
harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. Howev ...
, so for the Gospel and the Christian theologians it was Charity (virtue), charity, or love. Paul of Tarsus, St. Paul wrote (''Epistle to the Colossians'', 3:14): "And above all these things put on charity, which is the bond of perfectness". St. Gregory wrote that perfection will be realized only after the fulfillment of history — only "then will the world be beautiful and perfect." Still, everyone should make his own approach to perfection — to Sacred, holiness. Discourses in moral theology and asceticism were generous with advice on how this was to be done. The medieval concept of perfection and self-perfection, especially in its mature form, can be natural for modern man. As formulated by Peter Lombard, this concept implies that perfection is a result of ''Personal development, development''. And as described by Giles of Rome, perfection has not only personal sources ("''personalia''") but ''social'' ones ("''secundum statum''"). Since the individual is formed within a society, the second perfection subsumes the first, in accordance with the "order of the universe" ("''ordo universi''"). The social perfection is ''binding'' on man, whereas personal perfection is only ''becoming'' to him.Tatarkiewicz, "Moral Perfection", ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 120 Theses on perfection persist within the Church to the present day. The first condition for perfection is the desire of it. Also necessary is Divine grace, grace — but God gives grace to those who desire perfection and strive for it. Another condition for perfection is constancy of striving and effort.
Augustine Augustine of Hippo ( , ; la, Aurelius Augustinus Hipponensis; 13 November 354 – 28 August 430), also known as Saint Augustine, was a theologian and philosopher of Berber origin and the bishop of Hippo Regius in Numidia, Roman North Af ...
says: "He who stops, regresses." And effort is necessary in things not only great but also in the smallest; the Gospel according to St. Luke says: "He that is faithful in that which is least is faithful also in much: and he that is unjust in the least is unjust also in much." An aid in approaching perfection is an awareness of
God In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
's perfection and of one's own imperfection. The 14th century saw, with the Scotism, Scotists, a shift in interest from moral to ontology, ontological perfection; the 15th century, particularly during the Italian Renaissance, a shift to artistic perfection.Tatarkiewicz, "Moral Perfection", ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 121 The first half of the 16th century saw John Calvin's complete conditioning of man's perfection on the divine grace, grace of God. The second half of the 16th century brought the Counter-reformation, the Council of Trent, and a return of the Roman Catholic Church, Catholic concept; and also, heroic attempts to attain perfection through contemplation and mortification of the flesh, mortification. This was the age of Ignatius Loyola and the founding of the Jesuit Order; of Teresa of Ávila, St. Teresa of Ávila (1515–82) and St. John of the Cross (1542–91), and the 1593 founding of the Discalced Carmelites, Barefoot Carmelites. This was the culminating point in the history of the Christianity, Christian idea of perfection; at the same time, it was the terminal point as there soon began attempts at reforming the idea. The first half of the 17th century saw attempts at a Catholic reform of the idea of perfection. This was the time of Cornelis Jansen (1585–1638) and of Jansenism — of a growing belief in predestination and in the impossibility of perfection without Divine grace, grace. With the second half of the 17th century came a further development in the doctrine of predestination — the doctrine of "Quietism (Christian philosophy), Quietism". Perfection could be reached through a passive awaiting of grace rather than by an active striving. This theory, formulated in Spain by Miguel de Molinos (ca. 1628 - 1697), spread in France, where it was espoused by Madame Guyon (1648–1717) and for a time attracted François Fénelon. The 18th century brought a sea change to the idea of moral perfection. Faith in it remained, but it changed character from
religious Religion is usually defined as a social- cultural system of designated behaviors and practices, morals, beliefs, worldviews, texts, sanctified places, prophecies, ethics, or organizations, that generally relates humanity to supernatural, ...
to secular. This secular, 18th-century perfection was a fundamental article of faith for the Age of Enlightenment, Enlightenment. Its central tenet was that ''
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
was perfect''; and perfect, too, was the man who lived in harmony with nature's law.Tatarkiewicz, "Moral Perfection", ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 122. Primitive man was held to be the most perfect, for he was closest to nature. Perfection lay behind present-day man rather than before him, for civilization distanced man from perfection instead of bringing him closer to it. A second interpretation, however, took the contrary view: civilization perfected man by bringing him closer to
reason Reason is the capacity of Consciousness, consciously applying logic by Logical consequence, drawing conclusions from new or existing information, with the aim of seeking the truth. It is closely associated with such characteristically human activ ...
, and thereby to
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
; for reason would direct life with due consideration for the natural law, laws of nature. The former, retrospective view of perfection had antecedents in
antiquity Antiquity or Antiquities may refer to: Historical objects or periods Artifacts *Antiquities, objects or artifacts surviving from ancient cultures Eras Any period before the European Middle Ages (5th to 15th centuries) but still within the histo ...
: Hesiod and Ovid had described a "golden age" that had existed at the beginning of time, and which had been succeeded by silver, copper and Iron Ages, each inferior to the previous. The renewal of this view now, after two millennia, was stimulated by European contact with the "primitive" peoples of the Americas. Jean-Jacques Rousseau was but one of many who wrote in a similar vein. These two mid-18th-century schools of thought — one seeing perfection in
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
and in the past, and the other in civilization and in the future — represented a reaction not against the idea of perfection, but against its transcendence (philosophy), transcendental interpretation: as, earlier, the measure of perfection had been the idea of
God In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
, so now it was the idea of
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
or of civilization. It was the latter idea that ultimately gained the upper hand and passed into the 19th century as the legacy of the Age of Enlightenment, Enlightenment. The idea of perfection as transcendental, fell away; only worldly perfection counted. The idea that perfection was a matter of grace, also fell by the wayside; man himself must strive for it, and if a single man could not accomplish it, then perhaps mankind could. As
God In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
had been the measure of perfection during the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
, so now man was: the measure had become smaller, more accessible. To the thinking of the 19th century, such worldly, human perfection might ultimately be attainable by everyone. And if not perfection, then ''improvement''. This would be the great concept of the modern age. At the very midpoint of the 18th century, there occurred an exceptional momentary retreat from the idea of perfection. It was in the France, French ''Encyclopédie''. The entry, "Perfection" (vol. XII, 1765), discussed only technical perfection, in the sense of the matching of human products to the tasks set for them; no mention was made of ontology, ontological, morality, moral or esthetics, esthetic perfection.Tatarkiewicz, "Moral Perfection," ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 123. Otherwise, the 18th century saw great declarations championing the future perfection of man, as in Immanuel Kant's ''Idee zu einer allgemeinem Geschichte'' (1784) and Johann Gottfried von Herder's ''Ideen'' (1784/91). Perfection was expected to come about by a variety of means. Partly it would be by way of ''natural'' development and progress (the view espoused by David Hume) but more so by way of ''education'' (precursors of this view included John Locke, David Hartley (philosopher), David Hartley, and the leaders of the Polish Enlightenment) and by way of overt ''state'' action (Claude Adrien Helvétius, later Jeremy Bentham); reliance was placed in cooperation among people (Charles Fourier, 1808), later in eugenics (Francis Galton, 1869). While the foundations of the faith in the future perfectibility of man changed, the faith itself persisted. It linked the people of the Age of Enlightenment, Enlightenment with the idealism, idealists and romanticism, romantics — with Johann Gottlieb Fichte, Georg Wilhelm Friedrich Hegel, the Polish messianism, Polish Messianists — as well as with the 19th-century Positivism, Positivists and evolutionism, evolutionists; Herbert Spencer penned a great new declaration championing the future perfection of man. The idea of human perfectibility had, however, become more comprehensive. Man would attain greater perfection, in the sense that he would live more rationally, healthily, happily, comfortably. But there was no adequate term for this new conception, as the term "perfection" had a moral coloring, while the new goal was more intellectual, physical and social. In 1852, John Henry Newman, the future United Kingdom, British Cardinal (Catholicism), cardinal, wrote that it would be well if the
English language English is a West Germanic language of the Indo-European language family, with its earliest forms spoken by the inhabitants of early medieval England. It is named after the Angles, one of the ancient Germanic peoples that migrated to t ...
, like the
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
, had a term to express intellectual perfection, analogously to the term "health", which addresses man's physical state, and to "virtue", which speaks to his moral nature. During the 19th century, the Germany, Germans would come to call perfection, thus construed, "culture" (''Kultur''), and the France, French would call it "civilization" (''civilisation''). One of the elements of perfection, in its new construction, is ''health'', understood by the World Health Organization as "a state of complete physical and mental well-being".Tatarkiewicz, "Moral Perfection", ''Dialectics and Humanism'', vol. VII, no. 3 (summer 1980), p. 124. Still, the burgeoning achievements of contemporary biology have not dislodged the age-old interest in moral perfection — with the important distinction, that the goal now is not so much perfection as ''improvement''. A classic early-19th century exponent of this view was Johann Gottlieb Fichte, Fichte. In the 20th and 21st centuries, the advances of science and
technology Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, scie ...
appear to have been paralleled to some extent by increasingly pluralistic attitudes. The
Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...
philosopher Władysław Tatarkiewicz (1886–1980) has written: "To demand of someone that he strive after perfection seems equally inappropriate as to blame him for not striving after it." Such striving, he adds, "is often egocentric and yields poorer moral and social results than an outward-directed behavior based not on self-perfection but on good will and kindliness toward others".


Aesthetics

The
ancient Greeks Ancient Greece ( el, Ἑλλάς, Hellás) was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity ( AD 600), that comprised a loose collection of cult ...
viewed perfection as a requisite for beauty and high art. The Pythagoreans held that perfection was to be found in the right Body proportions, proportions and in a harmony, harmonious arrangement of parts. The idea that beauty and art were characterized by perfection, was subsequently embraced by
Plato Plato ( ; grc-gre, Πλάτων ; 428/427 or 424/423 – 348/347 BC) was a Greek philosopher born in Athens during the Classical period in Ancient Greece. He founded the Platonist school of thought and the Academy, the first institutio ...
, who believed that art ought to be "apt, suitable, without deviations" — in short, "perfect". Tatarkiewicz, "Aesthetic Perfection," ''Dialectics and Humanism'', vol. VII, no. 4 (autumn 1980), p. 145. From a conviction that perfection was a single quality, the Pythagoreans, Plato and their adherents held that beauty also was a single quality; hence, for every kind of art, there was but one perfect and proper Substantial form, form. Plutarch stated (''De Musica'') that, during the early Greek age, musical harmony, harmonies that were recognized as perfect were ''legally binding'' at public performances. Similarly, in temple architecture from the 5th century BCE, there were established classical order, orders. There were established Proportion (architecture), proportions for Doric order, Doric temples, and for Ionia, Ionic temples. Likewise in sculpture, for centuries, it was a matter of dogma that certain proportions of the human body were perfect and obligatory. There was also a prevalent belief that certain shapes and Proportionality (mathematics), proportions were in themselves perfect. Plato felt that the perfect proportion was the ratio of the Edge (geometry), side to the diagonal of a square (geometry), square. His authority was so great that architects and other artists continued using this proportion, even when ignorant of its source, as late as the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
.Tatarkiewicz, "Aesthetic Perfection", ''Dialectics and Humanism'', vol. VII, no. 4 (autumn 1980), p. 146. Another early idea — one that was to be espoused by many illustrious writers and artists of various periods — found perfection in the circle and the sphere.
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical Greece, Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatet ...
wrote in the ''Physica'' that the circle was "the perfect, first, most beautiful form". Cicero wrote in ''De Natura Deorum'' (On the Nature of the Gods): "Two shape, forms are the most distinctive: of solids, the sphere... and of plane figures, the circle... There is nothing more symmetry, commensurate than these forms." In a commentary to Aristotle's ''De coelo et mundo'' (''On the Heavens, On the Heavens and Earth''), the medieval Polish people, Pole, Jan of Słupcza, wrote: "The most perfect body ought to have the most perfect form, and such [a body] is heaven, while the most perfect form is the round form, for nothing can be added to it." In the famous illustrated ''Les très riches heures du duc de Berry'', paradise is depicted as contained within an ideal sphere. The
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass id ...
architect Sebastiano Serlio (1475–1554) stated: "the round form is the most perfect of all." The most excellent of 16th-century architects, Andrea Palladio, held that "the most perfect and most excellent" form was "the round form, since of all forms it is the simplest, the most uniform, the strongest, the most capacious" and "is the most suitable for rendering the unity, infinity, uniformity and righteousness of God". This was the same thought as in Jan of Słupcza and in Serlio, and it was one of uncommon durability.Tatarkiewicz, "Aesthetic Perfection", ''Dialectics and Humanism'', vol. VII, no. 4 (autumn 1980), p. 147. The
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
— Romanesque architecture, Romanesque and High Medieval, Gothic alike — had been quite taken with the idea of perfection. But a true explosion of the imperative for perfection came with the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass id ...
. Renaissance aesthetics placed less emphasis than had classicism, classical aesthetics on the unity of things perfect. Baldassare Castiglione, in his ''Il Cortegiano, Courtier'', wrote, of Leonardo da Vinci, Leonardo, Andrea Mantegna, Raphael, Michelangelo and Giorgione, that "each of them is unlike the others, but each is the most perfect [''perfectissimus''] in his style." The great architect and
polymath A polymath ( el, πολυμαθής, , "having learned much"; la, homo universalis, "universal human") is an individual whose knowledge spans a substantial number of subjects, known to draw on complex bodies of knowledge to solve specific pro ...
Leone Battista Alberti wrote (''De architectura'') that "the art of building... in Italy [had] achieved perfect maturity", that the Roman Empire, Romans had "created such a perfect art of building that there was in it nothing mysterious, hidden or unclear." This was yet another formulation of the concept of perfection. Daniele Barbaro, in his 1567 translation of Vitruvius, classically defined perfection as "that which lacks nothing and to which nothing can be added". The Renaissance showed a marked concern with ''preeminence'' in perfection. Leonardo concluded that the most perfect of the arts was painting. In 1546 Benedetto Varchi compared great masters in the arts. Others compared art and science, art and
nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
, and perfection in the arts of the ancients with that in the modern masters. The 16th century saw comparisons of their music, the 17th — of their visual arts and especially of their poetry. These comparisons construed perfection fairly loosely; the concept was treated more strictly by architecture, architects. The
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass id ...
distinguished a variety of properties to perfection. It was variously held to be: * an ''objective'' property (Petrarch, who opposed perfection to other esthetic qualities such as grace); * specific to ''art'' rather than to nature (Vasari); * a ''rare'' property (Leone Battista Alberti, Alberti felt that not even Greek architecture had attained perfection); * a property of the ''whole'' work rather than of its parts (Leone Battista Alberti, Alberti); * a conjunction of ''many'' values (Lodovico Dolce thought Raphael perfect because Raphael had manifold talent, as opposed to the one-sided Michelangelo); * something that required not merely talent but art, that is, ''skill'' (Vasari); * not the ''sole'' value in a work of art (Vasari differentiated perfection from grace; Renaissance Platonism, Platonists such as Ficino viewed perfection as a divine attribute). In the eclecticism, eclectic view of the late Renaissance, perfection in a work would require uniting the talents of ''many'' artists. Paolo Pino held that only that painter would be perfect who combined the talents of Titian and Michelangelo.Tatarkiewicz, "Aesthetic Perfection", ''Dialectics and Humanism'', vol. VII, no. 4 (autumn 1980), p. 149. The concept of perfection was harder to apply to Renaissance literature but became so common — often, linked to "''eccelente''" — as to become banal. Its frequent application brought about its relativization and even subjectivity, subjectivization. Beginning with Sebastiano Serlio, Serlio and Palladio, perfection in art had become less important, less definite, less objective. The striving for perfection no longer had the importance for man of letters, men of letters that it did for the great architects. But the 17th century still revered perfection, as shown by the appearance of that word in book titles: ''De perfecta poesi'' by the
Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...
poet Maciej Kazimierz Sarbiewski (1595–1640); ''Le peintre parfait'' (1767 by André Félibien; and ''Idée de la perfection de la peinture'' (1662) by Fréart de Chambray. Sarbiewski offered several theses: poetry not only imitates things ''perfectissime'' ("most perfectly"), but imitates them as they ought ''perfectissime'' to be in nature; perfect art is recognized by its agreement with nature, as well as its universality; art is the more perfect, the nobler (''nobilior'') its manner of representing things; it is the more perfect, the more truths it contains; perfection has various degrees — it is higher in poetry than in prose. In classicism, especially in France, French 17th-century classicism, from an ''ideal'' attainable by few, perfection became an ''obligation'' for every author. And inasmuch as the criterion of perfection had been lowered, "perfection" now meant only ''correctness''. In the ensuing devaluation, it was not enough that art be ''perfecta'', it should be ''perfectissima''. Perfection, formerly the ''supreme'' characterization for a work of art, now became but one of ''many'' positive characterizations. Cesare Ripa, in his ''Iconologia'' (published 1593, but typical for the 17th century), presented ''perfezione'' as a concept of equal status with grace (''grazia''), prettiness (''venustà'') and beauty (''bellezza'').Tatarkiewicz, "Aesthetic Perfection," ''Dialectics and Humanism'', vol. VII, no. 4 (autumn 1980), p. 150. Gottfried Wilhelm Leibniz, Leibniz's pupil, Christian Wolff (philosopher), Christian Wolff, in his ''Psychology'', wrote that beauty consists in perfection, and that this was why beauty was a source of pleasure. No such general esthetic theory, explicitly naming perfection, had ever been formulated by any of its devotees from
Plato Plato ( ; grc-gre, Πλάτων ; 428/427 or 424/423 – 348/347 BC) was a Greek philosopher born in Athens during the Classical period in Ancient Greece. He founded the Platonist school of thought and the Academy, the first institutio ...
to Palladio. Wolff's theory of beauty-as-perfection was developed by the school's chief aesthetician, Alexander Gottlieb Baumgarten. This tradition remained active in Germany as late as Gotthold Ephraim Lessing, who considered both beauty and sublimity to be ideas of perfection; when unity prevailed, beauty emerged; when plurality — sublimity. In the latter part of the 18th century, Immanuel Kant wrote much in his ''Critique of Judgment'' about perfection — inner and outer, objective and subjective, qualitative and quantitative, perceived clearly and obscurely, the perfection of nature and that of art. Nevertheless, in aesthetics Kant found that "The judgment of taste [i.e., aesthetic judgment] is entirely independent of the concept of perfection" — that is, beauty was something different from perfection. Earlier in the 18th century, France's leading aesthetician, Denis Diderot, had questioned whether perfection was a more comprehensible idea than beauty. Jean-Jacques Rousseau had treated perfection as an unreal concept, and wrote Jean le Rond d'Alembert, "Let us not seek the wiktionary:chimera, chimera of perfection, but that which is the best possible."Tatarkiewicz, "Aesthetic Perfection", ''Dialectics and Humanism'', vol. VII, no. 4 (autumn 1980), p. 151. In England, in 1757, the important aesthetician Edmund Burke denied that perfection was the cause of beauty. Quite the contrary, he argued that beauty nearly always involved an element of ''imperfection''; for example, women, in order to heighten their attractiveness, emphasized their weakness and frailty, which is to say, their imperfection. The 18th century was the last for which perfection was a principal concept in aesthetics. In the 19th century, perfection survived only vestigially as a general expression of approval. Alfred de Musset held that "Perfection is no more attainable for us than is infinity. One ought not to seek it anywhere: not in love, nor beauty, nor happiness, nor virtue; but one should love it, in order to be virtuous, beautiful and happy, insofar as that is possible for man." In the 20th century, Paul Valéry wrote: "To strive for perfection, to devote endless time to a work, to set oneself—like Goethe—an unattainable goal, are all intents that are precluded by the pattern of modern life." The dismissal of the question concerning whether artists ''can'' achieve perfection, still left the question: Do artists ''want'' to achieve it? Is that their actual goal? Some artists, schools and epochs ''have'' aimed for perfection. Others have nurtured ''other'' goals: pluralism, novelty, powerful sensations, faithfulness to truth, self-expression and expression of the world, creativity and originality — all of which may roughly be summarized as "expression." There have been ages of perfection, and ages of expression. The arts of ancient Greece, the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass id ...
and neoclassicism were arts of perfection. In the mannerism, mannerist, baroque and romanticism, romantic periods, expression has prevailed.


Ontology and theology

The Greek philosopher Anaximander described the world as "endless" (''apeiron''), Xenophanes — as "the greatest" (''megistos''). But while they ascribed great qualities to the world, they did not regard it as perfect. Tatarkiewicz, "Ontological and Theological Perfection," ''Dialectics and Humanism'', vol. VIII, no. 1 (winter 1981), p. 187. Only Parmenides seems to have considered existence to be "''tetelesmenon''" ("finished"); and Melissus of Samos, Melissos, his successor in the Eleatics, Eleatic school, said that existence "was entirely" ("''pan esti''"). Thus both saw perfection in existence; true existence was one, constant, immutable. Moreover, Parmenides thought the world to be wiktionary:finite, finite, limited in all directions, and like a sphere — which was a mark of its perfection. Parmenides' view was embraced to some extent by
Plato Plato ( ; grc-gre, Πλάτων ; 428/427 or 424/423 – 348/347 BC) was a Greek philosopher born in Athens during the Classical period in Ancient Greece. He founded the Platonist school of thought and the Academy, the first institutio ...
. He thought that the world was the work of a good Demiurge, and that this was why order and harmony prevailed in the world. The world was the best, the most beautiful, perfect. It had a perfect shape (spherical) and a perfect motion (circular). But Plato said nothing about the Demiurge architect-of-the-world himself being perfect. And understandably so, for perfection implied finitude, limits; whereas it was the world, not its creator, that had limits. A similar view was held by
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical Greece, Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatet ...
: the world could be perfect, but God could not. Only the pantheism, pantheist
Stoics Stoicism is a school of Hellenistic philosophy founded by Zeno of Citium in Athens in the early 3rd century BCE. It is a philosophy of personal virtue ethics informed by its system of logic and its views on the natural world, asserting th ...
held the divinity to be perfect — precisely because they identified it with the world. Cicero wrote in ''De natura deorum'' (On the Nature of the Gods) that the world "encompasses... within itself all beings... And what could be more nonsensical than denying perfection to an all-embracing being... Besides the world, there is no thing that does not lack something and that is harmonious, perfect and finished in every respect..."Tatarkiewicz, "Ontological and Theological Perfection," ''Dialectics and Humanism'', vol. VIII, no. 1 (winter 1981), p. 188. At a certain moment, Greek philosophy became bound up with the religion of the Christianity, Christians: the abstract concept of first cause became linked with the religious concept of
God In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
; the ''primum movens'' became identified with the Creator deity, Creator, the absolute with the divine Person. Features of an absolute existence were discovered in the Person of the Creator: He was immutable, timeless. And absolute existence took on the attributes of a person: it was good, omnipotent, omnipresent. Christian
theology Theology is the systematic study of the nature of the divine and, more broadly, of religious belief. It is taught as an academic discipline, typically in universities and seminaries. It occupies itself with the unique content of analyzing th ...
united the features of the first cause in Aristotle's ''Metaphysics'' with those of the Creator in the ''Book of Genesis''. But the attributes of God did not include perfection, for a perfect being must be ''finite''; only of such a being might one say that it lacked nothing. There was another reason for the denial, to God, of perfection — in a branch of Christian theology that was under the influence of Plotinus. In this view, the absolute from which the world derived could not be grasped in terms of human
concept Concepts are defined as abstract ideas. They are understood to be the fundamental building blocks of the concept behind principles, thoughts and beliefs. They play an important role in all aspects of cognition. As such, concepts are studied by s ...
s, even the most general and transcendent. Not only was that absolute not matter, it was not spirit either, nor idea; it was superior to these. It exceeded any description or praise; it was incomprehensible and ineffable; it was beyond all that we may imagine — including perfection. Medieval Christian philosophy held that the concept of perfection might describe Creation, but was not appropriate to describe God. Saint
Thomas Aquinas Thomas Aquinas, OP (; it, Tommaso d'Aquino, lit=Thomas of Aquino; 1225 – 7 March 1274) was an Italian Dominican friar and priest who was an influential philosopher, theologian and jurist in the tradition of scholasticism; he is known wi ...
, indicating that he was following
Aristotle Aristotle (; grc-gre, Ἀριστοτέλης ''Aristotélēs'', ; 384–322 BC) was a Greek philosopher and polymath during the Classical Greece, Classical period in Ancient Greece. Taught by Plato, he was the founder of the Peripatet ...
, defined a perfect thing as one that "possesses that of which, by its nature, it is capable." Also (''
Summa Theologica The ''Summa Theologiae'' or ''Summa Theologica'' (), often referred to simply as the ''Summa'', is the best-known work of Thomas Aquinas (1225–1274), a scholastic theologian and Doctor of the Church. It is a compendium of all of the main th ...
''): "That is perfect, which lacks nothing of the perfection proper to it." Thus there were, in the world, things perfect and imperfect, more perfect and less perfect. God permitted imperfections in Creation when they were necessary for the good of the whole. And for man it was natural to go by degrees from imperfection to perfection. Duns Scotus understood perfection still more simply and mundanely: "Perfection is that which it is better to have than not to have." It was not an attribute of God but a property of creation: all things partook of it to a greater or lesser degree. A thing's perfection depended on what sort of perfection it was eligible for. In general, that was perfect which had attained the fullness of the qualities possible for it. Hence "whole" and "perfect" meant more or less the same ("''totum et perfectum sunt quasi idem''"). This was a teleology, teleological concept, for it implied an telos (philosophy), end (goal or purpose). God created things that served certain purposes, created even those purposes, but He himself did not serve any purpose. Since God was not finite, He could not be called perfect: for the concept of perfection served to describe ''finite'' things. Perfection was not a theology, theological concept, but an ontology, ontological one, because it was a feature, in some degree, of every being. The 9th-century thinker Paschasius Radbertus wrote: "Everything is the more perfect, the more it resembles God." Still, this did not imply that God himself was perfect. The concept of perfection, as an attribute of God, entered
theology Theology is the systematic study of the nature of the divine and, more broadly, of religious belief. It is taught as an academic discipline, typically in universities and seminaries. It occupies itself with the unique content of analyzing th ...
only in modern times, through René Descartes — and in the ''plural'', as the "perfections" of God. After Descartes, the concept of perfection as a principal concept in philosophy was upheld by other great 17th-century thinkers. In Benedict Spinoza's philosophy, however, there was no personal God, and perfection became a property of — even a synonym for — the existence of reality (that is, for the essence of things).Tatarkiewicz, "Ontological and Theological Perfection," ''Dialectics and Humanism'', vol. VIII, no. 1 (winter 1981), p. 191. Gottfried Wilhelm Leibniz, Leibniz wrote: "As M. Descartes states, ''existence'' itself is perfection." Leibniz added: "Perfection, I call any simple quality, if it is positive and absolute, such that, if it expresses something, it does so without limits." At the same time, Leibniz also construed perfection, in his ''Monadology'', in an utterly different way: "Only that is perfect which possesses no limits, that is, only God." This concept would last out the entire 17th century. Subsequently, Immanuel Kant would describe perfection as "''omnitudo realitatis''" ("the omnitude of reality"). Thus perfection, which during the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire ...
could be a property of any individual being, in 17th-century philosophy became as well, and indeed preeminently, a property of God. Leibniz's pupil and successor, Christian Wolff (philosopher), Christian Wolff, took up this concept of perfection — but with a difference. Wolff ascribed perfection not to being as a whole, but once again to its individual constituents. He gave, as examples, an eye that sees faultlessly, and a watch that runs faultlessly. He also distinguished variants — ''perfectio simplex'' and ''composita'', ''primaria'' and ''secundaria'' — and differentiated the magnitude of perfection (''magnitudo perfectionis''). Wolff's pupil, Alexander Gottlieb Baumgarten, derived perfection from rules, but anticipated their collisions (''regularum collisio'') leading to exceptions (''exceptio'') and limiting the perfection of things. Baumgarten distinguished perfection ''simplex'' and ''composita'', ''interna'' and ''externa'', ''transcendentalis'' and ''accidentalis''; and, positing so broad a construction, he arrived at the conclusion that "everything is perfect".Tatarkiewicz, "Ontological and Theological Perfection", ''Dialectics and Humanism'', vol. VIII, no. 1 (winter 1981), p. 192. In short, Wolff and his pupils had returned to the ontology, ontological concept of perfection that the Scholastics had used. The ''theology, theological'' concept of perfection had lived only from Descartes to Leibniz, in the 17th century. Thanks to Wolff's school, the concept of perfection lasted in Germany through the 18th century. In other western countries, however, especially France and Kingdom of Great Britain, Britain, in that century the concept of perfection was already in decline. It was ignored by the French ''Grande Encyclopédie''. The history of the concept of perfection had undergone great evolutions — from "''Nothing'' in the world is perfect", to "''Everything'' is perfect"; and from "Perfection is ''not'' an attribute of God", to "Perfection ''is'' an attribute of God." With Christian Wolff (philosopher), Christian Wolff's school, every thing had become perfect. This was a singular moment in the history of the ontology, ontological concept of perfection; and soon thereafter, that history came to an end.


Many concepts

The foregoing discussion shows that the ''term'' "perfection" has been used to designate a variety of ''
concept Concepts are defined as abstract ideas. They are understood to be the fundamental building blocks of the concept behind principles, thoughts and beliefs. They play an important role in all aspects of cognition. As such, concepts are studied by s ...
s'': * The word "perfection" has a special meaning in mathematics, where it gives a ''proper name'' to certain numbers that demonstrate uncommon properties. * In
physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which rel ...
and chemistry, "perfection" designates a ''scientific model, model'' — a conceptual construct for bodies that in reality do not precisely correspond to the model. * Elsewhere the term "perfection" is used consistently with the word's etymology ("perfect" = "finished"). That is perfect which ''lacks nothing''. This is how the term has been used in
ontology In metaphysics, ontology is the philosophical study of being, as well as related concepts such as existence, becoming, and reality. Ontology addresses questions like how entities are grouped into categories and which of these entities ...
(a perfect being),
ethics Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior".''Internet Encyclopedia of Philosophy'' The field of ethics, along with aesthetics, concerns ...
(a perfect life) and medicine (perfect health). In these fields, the concept is understood variously as ''ideal model (abstract), model'' or as ''actual approximation'' to the model. * Also called "perfect" is that which completely ''achieves its purpose''. Christian Wolff (philosopher), Christian Wolff gave examples from biology (perfect vision) and
technology Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, scie ...
(a clock that runs neither slow nor fast). Here "perfection" is less fictitious model (abstract), model than actual ''approximation'' to the model. * That is "perfect," which completely fulfills its functions. In ''social'' discourse, one speaks of a perfect artist, engineer or carpenter. The term is used similarly in art criticism, when speaking of perfect technique or of the perfect likeness of a portrait. Here again, "perfection" is either ideal model or approximate realization of the model. * In
aesthetics Aesthetics, or esthetics, is a branch of philosophy Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, Epistemology, knowledge, Ethics, values, Philosophy of ...
and art theory, perfection is ascribed to what is fully harmony, harmonious — to what is constructed in accordance with a single principle (e.g., the Parthenon, the ''Odyssey''). Tatarkiewicz, "On Perfection: Conclusion," ''Dialectics and Humanism'', vol. VIII, no. 2 (spring 1981), p. 11. *In business and manufacturing, perfection is one of the principles underlying lean thinking. Except for the first, mathematical sense, all these concepts of "perfection" show a kinship and oscillate between ideal (ethics), ideal and approximation. However, the expression "perfect" is also used colloquially as a superlative ("perfect idiot," "perfect scoundrel," "perfect storm"). Here ''perfectum'' is confused with ''excellens'' of an approving, admiring or condemnatory kind. Perfection has also been construed as that which is ''the best''. In
theology Theology is the systematic study of the nature of the divine and, more broadly, of religious belief. It is taught as an academic discipline, typically in universities and seminaries. It occupies itself with the unique content of analyzing th ...
, when Descartes and Gottfried Wilhelm Leibniz, Leibniz termed
God In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
"perfect," they had in mind something other than ''model (abstract), model''; than that which ''lacks nothing''; than that ''achieves its purpose''; than that fulfills its functions; or than that ''is harmony, harmonious''.Tatarkiewicz, "On Perfection: Conclusion," ''Dialectics and Humanism'', vol. VIII, no. 2 (spring 1981), p. 12.


See also

* Christian perfection * Perfect competition * Perfect fifth * Perfect flower (bisexual flower) * Perfect fourth * Perfectionism (psychology), Perfectionism * Perfection (law) * Three perfections (Chinese art)


Notes


References

* Władysław Tatarkiewicz, ''O doskonałości'' (On Perfection), Warsaw, Państwowe Wydawnictwo Naukowe, 1976. * An English translation of Tatarkiewicz's book (''On Perfection''), by Christopher Kasparek, was serialized in ''Dialectics and Humanism: the Polish Philosophical Quarterly'', vol. VI, no. 4 (autumn 1979), pp. 5–10; vol. VII, no. 1 (winter 1980), pp. 77–80; vol. VII, no. 2 (spring 1980), pp. 137–39; vol. VII, no. 3 (summer 1980), pp. 117–24; vol. VII, no. 4 (autumn 1980), pp. 145–53; vol. VIII, no. 1 (winter 1981), pp. 187–92; and vol. VIII, no. 2 (spring 1981), pp. 11–12. * Christopher Kasparek, Kasparek's translation has subsequently also appeared in the book: Władysław Tatarkiewicz, ''On Perfection'', Warsaw University Press, Center of Universalism, 1992, pp. 9–51. The book is a collection of papers by and about the late Professor Tatarkiewicz.


External links

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