Fire (classical element)
Encyclopedia
Fire has been an important part of all culture
Culture
Culture is a term that has many different inter-related meanings. For example, in 1952, Alfred Kroeber and Clyde Kluckhohn compiled a list of 164 definitions of "culture" in Culture: A Critical Review of Concepts and Definitions...

s and religion
Religion
Religion is a collection of cultural systems, belief systems, and worldviews that establishes symbols that relate humanity to spirituality and, sometimes, to moral values. Many religions have narratives, symbols, traditions and sacred histories that are intended to give meaning to life or to...

s from pre-history to modern day and was vital to the development of civilization. It has been regarded in many different contexts throughout history, but especially as a metaphysical constant of the world.

Greek and Roman tradition

Fire is one of the four classical element
Classical element
Many philosophies and worldviews have a set of classical elements believed to reflect the simplest essential parts and principles of which anything consists or upon which the constitution and fundamental powers of anything are based. Most frequently, classical elements refer to ancient beliefs...

s in ancient Greek philosophy
Greek philosophy
Ancient Greek philosophy arose in the 6th century BCE and continued through the Hellenistic period, at which point Ancient Greece was incorporated in the Roman Empire...

 and science. It was commonly associated with the qualities of energy, assertiveness, and passion. In one Greek myth, Prometheus
Prometheus
In Greek mythology, Prometheus is a Titan, the son of Iapetus and Themis, and brother to Atlas, Epimetheus and Menoetius. He was a champion of mankind, known for his wily intelligence, who stole fire from Zeus and gave it to mortals...

 stole fire from the gods to protect the otherwise helpless humans, but was punished for this charity. The ancient Greeks distinguished the destructive and consumptive (aidelon) fire, associated with Hades
Hades
Hades , Hadēs, originally , Haidēs or , Aidēs , meaning "the unseen") was the ancient Greek god of the underworld. The genitive , Haidou, was an elision to denote locality: "[the house/dominion] of Hades". Eventually, the nominative came to designate the abode of the dead.In Greek mythology, Hades...

, from the creative fire, associated with Hephaestus
Hephaestus
Hephaestus was a Greek god whose Roman equivalent was Vulcan. He is the son of Zeus and Hera, the King and Queen of the Gods - or else, according to some accounts, of Hera alone. He was the god of technology, blacksmiths, craftsmen, artisans, sculptors, metals, metallurgy, fire and volcanoes...

, the god of metalworking and smithing. Goddess Hekate was called Pyrphoros (Fire-bearing), Pyripnon (Fire-breather), Daidoukhos (Torch-bearer) and Phosphoros (Light-bearer).

Fire was one of many archai proposed by the Pre-socratics, most of whom sought to reduce the cosmos
Cosmos
In the general sense, a cosmos is an orderly or harmonious system. It originates from the Greek term κόσμος , meaning "order" or "ornament" and is antithetical to the concept of chaos. Today, the word is generally used as a synonym of the word Universe . The word cosmos originates from the same root...

, or its creation, by a single substance. Heraclitus
Heraclitus
Heraclitus of Ephesus was a pre-Socratic Greek philosopher, a native of the Greek city Ephesus, Ionia, on the coast of Asia Minor. He was of distinguished parentage. Little is known about his early life and education, but he regarded himself as self-taught and a pioneer of wisdom...

  considered fire to be the most fundamental of all elements. He believed fire gave rise to the other three elements: "All things are an interchange for fire, and fire for all things, just like goods for gold and gold for goods". He had a reputation for obscure philosophical principles and for speaking in riddles. He described how fire gave rise to the other elements as the: "upward-downward path", , a "hidden harmony"  or series of transformations he called the "turnings of fire", , first into sea
Water (classical element)
Water is one of the elements in ancient Greek philosophy, in the Asian Indian system Panchamahabhuta, and in the Chinese cosmological and physiological system Wu Xing...

, and half that sea into earth
Earth (classical element)
Earth, home and origin of humanity, has often been worshipped in its own right with its own unique spiritual tradition.-European tradition:Earth is one of the four classical elements in ancient Greek philosophy and science. It was commonly associated with qualities of heaviness, matter and the...

, and half that earth into rarefied air
Air (classical element)
Air is often seen as a universal power or pure substance. Its supposed fundamental importance to life can be seen in words such as aspire, inspire, perspire and spirit, all derived from the Latin spirare.-Greek and Roman tradition:...

. A concept that anticipates both the four classical elements of Empedocles
Empedocles
Empedocles was a Greek pre-Socratic philosopher and a citizen of Agrigentum, a Greek city in Sicily. Empedocles' philosophy is best known for being the originator of the cosmogenic theory of the four Classical elements...

 and Aristotle
Aristotle
Aristotle was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology...

's transmutation of the four elements into one another.
This world, which is the same for all, no one of gods or men has made. But it always was and will be: an ever-living fire, with measures of it kindling, and measures going out.

Heraclitus
Heraclitus
Heraclitus of Ephesus was a pre-Socratic Greek philosopher, a native of the Greek city Ephesus, Ionia, on the coast of Asia Minor. He was of distinguished parentage. Little is known about his early life and education, but he regarded himself as self-taught and a pioneer of wisdom...

 regarded the soul as being a mixture of fire and water, with fire being is the more noble
Noble
Noble may refer to:* Nobility, a hereditary caste* Noble gas, chemical elements in group 18 of the periodic table* Noble metal, metals that are resistant to corrosion or oxidation...

 part and water the ignoble aspect. He believed the goal of the soul is to be rid of water and become pure fire: the dry soul is the best and it is worldly pleasures make the soul "moist". He was known as the "weeping philosopher" and died of hydropsy, a swelling due to abnormal accumulation of fluid beneath the skin.

However, Empedocles
Empedocles
Empedocles was a Greek pre-Socratic philosopher and a citizen of Agrigentum, a Greek city in Sicily. Empedocles' philosophy is best known for being the originator of the cosmogenic theory of the four Classical elements...

 of Acragas , is best known for having selected all elements as his archai and by the time of Plato
Plato
Plato , was a Classical Greek philosopher, mathematician, student of Socrates, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the Western world. Along with his mentor, Socrates, and his student, Aristotle, Plato helped to lay the...

  , the four Empedoclian elements of were well established. In the Timaeus
Timaeus (dialogue)
Timaeus is one of Plato's dialogues, mostly in the form of a long monologue given by the title character, written circa 360 BC. The work puts forward speculation on the nature of the physical world and human beings. It is followed by the dialogue Critias.Speakers of the dialogue are Socrates,...

, Plato's major cosmological dialogue, the Platonic solid
Platonic solid
In geometry, a Platonic solid is a convex polyhedron that is regular, in the sense of a regular polygon. Specifically, the faces of a Platonic solid are congruent regular polygons, with the same number of faces meeting at each vertex; thus, all its edges are congruent, as are its vertices and...

 he associated with fire was the tetrahedron
Tetrahedron
In geometry, a tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex. A regular tetrahedron is one in which the four triangles are regular, or "equilateral", and is one of the Platonic solids...

 which is formed from four triangles and contains the least volume with the greatest surface area. This also makes fire the element with the smallest number of sides, and Plato regarded it as appropriate for the heat of fire, which he felt is sharp and stabbing, (like one of the points of a tetrahedra).

Plato’s student Aristotle
Aristotle
Aristotle was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology...

  did not maintain his former teacher's geometric view of the elements, but rather preferred a somewhat more naturalistic explanation for the elements based on their traditional qualities. Fire the hot and dry element, like the other elements was an abstract principle and not identical with the normal solids, liquids and combustion phenomena we experience:
What we commonly call fire. It is not really fire, for fire is an excess of heat and a sort of ebullition; but in reality, of what we call air, the part surrounding the earth is moist and warm, because it contains both vapour and a dry exhalation from the earth.

According to Aristotle, the four elements rise or fall toward their natural place in concentric layers surrounding the center of the earth and form the terrestrial or sublunary sphere
Sublunary sphere
The sublunary sphere is a concept derived from Greek astronomy. It is the region of the cosmos from the Earth to the Moon, consisting of the four classical elements: earth, water, air, and fire. Beginning with the Moon, up to the limits of the universe, everything is made of aether...

s.

In ancient Greek medicine
Medicine in Ancient Greece
The first known Greek medical school opened in Cnidus in 700 BC. Alcmaeon, author of the first anatomical work, worked at this school, and it was here that the practice of observing patients was established. Ancient Greek medicine revolved around the theory of humours...

, each of the four humours
Four humours
Four Temperaments is a theory of proto-psychology that stems from the ancient medical concept of humorism and suggests that four bodily fluids affect human personality traits and behaviors.- History and development :...

 became associated with an element. Yellow bile
Bile
Bile or gall is a bitter-tasting, dark green to yellowish brown fluid, produced by the liver of most vertebrates, that aids the process of digestion of lipids in the small intestine. In many species, bile is stored in the gallbladder and upon eating is discharged into the duodenum...

 was the humor identified with fire, since both were hot and dry. Other things associated with fire and yellow bile in ancient and medieval medicine
Medieval medicine
Medieval medicine in Western Europe was composed of a mixture of existing ideas from antiquity, spiritual influences and what Claude Lévi-Strauss identifies as the "shamanistic complex" and "social consensus." In this era, there was no tradition of scientific medicine, and observations went...

 included the season of summer, since it increased the qualities of heat and aridity; the choleric temperament (of a person dominated by the yellow bile humour); the masculine
Masculinity
Masculinity is possessing qualities or characteristics considered typical of or appropriate to a man. The term can be used to describe any human, animal or object that has the quality of being masculine...

; and the eastern point of the compass.

In alchemy
Alchemy
Alchemy is an influential philosophical tradition whose early practitioners’ claims to profound powers were known from antiquity. The defining objectives of alchemy are varied; these include the creation of the fabled philosopher's stone possessing powers including the capability of turning base...

 the chemical element
Chemical element
A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. Familiar examples of elements include carbon, oxygen, aluminum, iron, copper, gold, mercury, and lead.As of November 2011, 118 elements...

 of sulfur
Sulfur
Sulfur or sulphur is the chemical element with atomic number 16. In the periodic table it is represented by the symbol S. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Elemental sulfur is a bright yellow...

 was often associated with fire and its alchemical symbol
Alchemical symbol
Alchemical symbols, originally devised as part of alchemy, were used to denote some elements and some compounds until the 18th century. Note that while notation like this was mostly standardized, style and symbol varied between alchemists, so this page lists the most common.-Three primes:According...

 and its symbol was an upward-pointing triangle. In alchemic tradition, metals are incubated by fire in the womb of the Earth and alchemists only accelerate their development.

Indian tradition

Agni is a Hindu
Hindu
Hindu refers to an identity associated with the philosophical, religious and cultural systems that are indigenous to the Indian subcontinent. As used in the Constitution of India, the word "Hindu" is also attributed to all persons professing any Indian religion...

 and Vedic deity
Rigvedic deities
There are 1028 hymns in the Rigveda, most of them dedicated to specific deities.Indra, a heroic god, slayer of Vrtra and destroyer of the Vala, liberator of the cows and the rivers; Agni the sacrificial fire and messenger of the gods; and Soma the ritual drink dedicated to Indra are the most...

. The word agni is Sanskrit
Sanskrit
Sanskrit , is a historical Indo-Aryan language and the primary liturgical language of Hinduism, Jainism and Buddhism.Buddhism: besides Pali, see Buddhist Hybrid Sanskrit Today, it is listed as one of the 22 scheduled languages of India and is an official language of the state of Uttarakhand...

 for fire (noun), cognate with Latin
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

 ignis (the root of English ignite), Russian огонь (fire), pronounced agon. Agni has three forms: fire, lightning and the sun.

Agni is one of the most important of the Vedic gods. He is the god of fire and the acceptor of sacrifices. The sacrifices made to Agni go to the deities
Deity
A deity is a recognized preternatural or supernatural immortal being, who may be thought of as holy, divine, or sacred, held in high regard, and respected by believers....

 because Agni is a messenger from and to the other gods. He is ever-young, because the fire is re-lit every day, yet he is also immortal. In Indian tradition Fire is also linked to Surya
Surya
Surya Suraya or Phra Athit is the chief solar deity in Hinduism, one of the Adityas, son of Kasyapa and one of his wives, Aditi; of Indra; or of Dyaus Pitar . The term Surya also refers to the Sun, in general. Surya has hair and arms of gold...

 or the Sun and Mangala
Mangala
In Jyotish astrology, Mangala is the name for Mars, the red planet. Mars is also called Angaraka In Jyotish astrology, Mangala (Devanagari: मंगल) is the name for Mars, the red planet. Mars is also called Angaraka In Jyotish astrology, Mangala (Devanagari: मंगल) is the name for Mars, the red...

 or Mars, and with the south-east direction.

Astrological

People born under the astrological sign
Astrological sign
Astrological signs represent twelve equal segments or divisions of the zodiac. According to astrology, celestial phenomena reflect or govern human activity on the principle of "as above, so below", so that the twelve signs are held to represent twelve basic personality types or characteristic modes...

s of Aries
Aries (astrology)
Aries is the first astrological sign in the Zodiac, which spans the zodiac between the zero degree and the 29th degree of celestial longitude. The Sun enters Aries when it reaches the northern vernal equinox, which is usually on March 21 each year, and remains in this sign until around April 20...

, Leo
Leo (astrology)
Leo is the fifth astrological sign of the Zodiac, originating from the constellation of Leo. In astrology, Leo is considered to be a "masculine", positive sign. It is also considered a fire sign and is one of four fixed signs ruled by the Sun.Individuals born when the Sun is in this sign are...

 and Sagittarius
Sagittarius (astrology)
Sagittarius is the ninth astrological sign in the Zodiac, which spans the zodiac between the 240th and 269th degree of celestial longitude...

 are thought to have dominant fire personalities. Fire personalities are believed to have good leading qualities, and also tend to be extroverted, rebellious, passionate and enthusiastic, brave and valiant; however, they can also be moody, hot-tempered, snappy, uncontrollable and angry.

Ceremonial magic

Fire and the other Greek classical elements were incorporated into the Golden Dawn system. Philosophus (4=7) is the elemental grade attributed to fire; this grade is also attributed to the Qabalistic
Hermetic Qabalah
Hermetic Qabalah is a Western esoteric and mystical tradition...

 Sephirah Netzach and the planet Venus. The elemental weapon of fire is the Wand or Dagger. Each of the elements has several associated spiritual beings. The archangel of fire is Michael
Michael (archangel)
Michael , Micha'el or Mîkhā'ēl; , Mikhaḗl; or Míchaël; , Mīkhā'īl) is an archangel in Jewish, Christian, and Islamic teachings. Roman Catholics, Anglicans, and Lutherans refer to him as Saint Michael the Archangel and also simply as Saint Michael...

, the angel is Aral, the ruler is Seraph, the king is Djin, and the fire elemental
Elemental
An elemental is a mythological being first appearing in the alchemical works of Paracelsus in the 16th century. Traditionally, there are four types:*gnomes, earth elementals*undines , water elementals*sylphs, air elementals...

s (following Paracelsus
Paracelsus
Paracelsus was a German-Swiss Renaissance physician, botanist, alchemist, astrologer, and general occultist....

) are called salamanders
Salamander (legendary creature)
The salamander is an amphibian of the order Urodela. As with many real creatures, pre-modern authors often ascribed fantastic qualities to it , and in recent times some have come to identify a legendary salamander as a distinct concept from the real organism. This idea is most highly developed in...

. Fire is considered to be active; it is represented by the symbol for Leo
Leo (astrology)
Leo is the fifth astrological sign of the Zodiac, originating from the constellation of Leo. In astrology, Leo is considered to be a "masculine", positive sign. It is also considered a fire sign and is one of four fixed signs ruled by the Sun.Individuals born when the Sun is in this sign are...

, and it is referred to the lower right point of the pentagram in the Supreme Invoking Ritual of the Pentagram. Many of these associations have since spread throughout the occult community.

Modern witchcraft

Fire is one of the five elements that appear in most Wicca
Wicca
Wicca , is a modern Pagan religious movement. Developing in England in the first half of the 20th century, Wicca was popularised in the 1950s and early 1960s by a Wiccan High Priest named Gerald Gardner, who at the time called it the "witch cult" and "witchcraft," and its adherents "the Wica."...

n traditions influenced by the Golden Dawn system of magic, and Aleister Crowley
Aleister Crowley
Aleister Crowley , born Edward Alexander Crowley, and also known as both Frater Perdurabo and The Great Beast, was an influential English occultist, astrologer, mystic and ceremonial magician, responsible for founding the religious philosophy of Thelema. He was also successful in various other...

's mysticism, which was in turn inspired by the Golden Dawn. Common Wiccan attributions include:
  • Cardinal direction: South
  • Season: Summer
    Summer
    Summer is the warmest of the four temperate seasons, between spring and autumn. At the summer solstice, the days are longest and the nights are shortest, with day-length decreasing as the season progresses after the solstice...

  • Time of life: Adulthood
  • Time of day: Noon
  • Regent Planet: Mars
    Mars
    Mars is the fourth planet from the Sun in the Solar System. The planet is named after the Roman god of war, Mars. It is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance...

  • Elemental being: Salamander
    Salamander (legendary creature)
    The salamander is an amphibian of the order Urodela. As with many real creatures, pre-modern authors often ascribed fantastic qualities to it , and in recent times some have come to identify a legendary salamander as a distinct concept from the real organism. This idea is most highly developed in...

  • Colors: Red and orange
  • Magical tools: Athame
    Athame
    An Athame or Athamé is a ceremonial dagger, with a double-edged blade and usually a black handle. It is the main ritual implement or magical tool among several used in the religion of Wicca, and is also used in various other neopagan witchcraft traditions. It is variously pronounced or...

     and ceremonial dagger
  • Tarot reading: Wands or Swords in the Minor Arcana
    Minor Arcana
    |thumb|[[King of Swords]] card from a Minor Arcana deckThe Minor Arcana of occult or divinatory tarot refers to the portion of a Tarot deck that consists of 56 cards. The Minor Arcana are roughly similar to the cards found in a common deck of playing cards...

    . Wands are traditionally associated with fire and still are in most tarot decks, however, increasingly decks are being published with Swords associated with Fire. This is still a matter of debate within the esoteric and Wiccan community.
  • Altar tool: Candle
  • Masculine energy
  • Other: Correspondences include blood, the guitar, rubies and in writing fire is sometimes represented by a red upwards triangle.


In rituals, fire is represented in the forms of burning objects, love spells, baking and lighting candles or fires.

The manifestations of the element are found in the sun, volcanoes, lava and all forms of light. Cats of all types, especially the lion
Lion
The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...

 and tiger
Tiger
The tiger is the largest cat species, reaching a total body length of up to and weighing up to . Their most recognizable feature is a pattern of dark vertical stripes on reddish-orange fur with lighter underparts...

 are also thought to personify the element of fire, as are all predatory creatures, such as the fox.

Other mythic and legendary creatures of fire include phoenix
Phoenix (mythology)
The phoenix or phenix is a mythical sacred firebird that can be found in the mythologies of the Arabian, Persians, Greeks, Romans, Egyptians, Chinese, Indian and Phoenicians....

, European dragon
European dragon
European dragons are legendary creatures in folklore and mythology among the overlapping cultures of Europe.In European folklore, a dragon is a serpentine legendary creature. The Latin word draco, as in constellation Draco, comes directly from Greek δράκων,...

 and occasionally the hawk
Hawk
The term hawk can be used in several ways:* In strict usage in Australia and Africa, to mean any of the species in the subfamily Accipitrinae, which comprises the genera Accipiter, Micronisus, Melierax, Urotriorchis and Megatriorchis. The large and widespread Accipiter genus includes goshawks,...

.

Other traditions

Fire represents the creativity and passion that all intellectual and emotional beings have. It is an active force that has the passion to create and animate things. The element is also very rational and quick to flare up as is the personality of many fire-children.

Fire in many ancient cultures and myths has been known to purify the land with the flames of destruction, however, it is also capable of the renewal of life through the warmth and comfort of those very same flames.

The element of fire shows up in mythological stories all across the world, often in stories related to the sun.

In East Asia
East Asia
East Asia or Eastern Asia is a subregion of Asia that can be defined in either geographical or cultural terms...

 fire is represented by the Vermilion Bird, known as 朱雀 (Zhū Què) in Chinese
Chinese language
The Chinese language is a language or language family consisting of varieties which are mutually intelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the branches of Sino-Tibetan family of languages...

, Suzaku in Japanese
Japanese language
is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is a member of the Japonic language family, which has a number of proposed relationships with other languages, none of which has gained wide acceptance among historical linguists .Japanese is an...

 and Ju-jak (주작, Hanja
Hanja
Hanja is the Korean name for the Chinese characters hanzi. More specifically, it refers to those Chinese characters borrowed from Chinese and incorporated into the Korean language with Korean pronunciation...

:朱雀) in Korean
Korean language
Korean is the official language of the country Korea, in both South and North. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China. There are about 78 million Korean speakers worldwide. In the 15th century, a national writing...

. Fire is represented in the Aztec
Aztec
The Aztec people were certain ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language and who dominated large parts of Mesoamerica in the 14th, 15th and 16th centuries, a period referred to as the late post-classic period in Mesoamerican chronology.Aztec is the...

 religion by a flint; to the Native Americans
Indigenous peoples of the Americas
The indigenous peoples of the Americas are the pre-Columbian inhabitants of North and South America, their descendants and other ethnic groups who are identified with those peoples. Indigenous peoples are known in Canada as Aboriginal peoples, and in the United States as Native Americans...

, a mouse; to the Hindu
Hindu
Hindu refers to an identity associated with the philosophical, religious and cultural systems that are indigenous to the Indian subcontinent. As used in the Constitution of India, the word "Hindu" is also attributed to all persons professing any Indian religion...

 and Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

ic faiths, a lightning bolt; to the Scythians, an axe, to the Greeks
Culture of Greece
The culture of Greece has evolved over thousands of years, beginning in Mycenaean Greece, continuing most notably into Classical Greece, through the influence of the Roman Empire and its Greek Eastern successor the Byzantine Empire...

, an apple-bough; and in Christian
Christian
A Christian is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth as recorded in the Canonical gospels and the letters of the New Testament...

 iconography
Iconography
Iconography is the branch of art history which studies the identification, description, and the interpretation of the content of images. The word iconography literally means "image writing", and comes from the Greek "image" and "to write". A secondary meaning is the painting of icons in the...

, a lion.

Further reading

  • Frazer, Sir James George, Myths of the Origin of Fire, London: Macmillan, 1930.
  • Freeman, Kathleen
    Kathleen Freeman (classicist)
    Kathleen Freeman was a British classical scholar and author of detective novels....

     & Diels, Hermann
    Hermann Alexander Diels
    Hermann Alexander Diels was a German classical scholar.-Biography:He was educated at the universities of Bonn and Berlin and in 1886 became professor ordinarius of classical philology at the latter institution....

    ; Ancilla to the Pre-Socratic Philosophers: a complete translation of the fragments in Diels, Fragmente der Vorsokratiker. ISBN 9781606802564. Cambridge: Harvard University Press, [1948] 1970.

External links

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