On the Nature of the Celestial Sphere
{"WorkMasterId":4850,"WpPageId":242248,"ParentWpPageId":193931,"Slug":"on-the-nature-of-the-celestial-sphere","Url":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/al-kindi-ya-qub-ibn-ishaq-al-kindi/on-the-nature-of-the-celestial-sphere/","RelativeUrl":"theos/humanities/philosophy/philosophers/al-kindi-ya-qub-ibn-ishaq-al-kindi/on-the-nature-of-the-celestial-sphere/","HasFullText":false,"RawHtmlLength":68665,"CleanHtmlLength":15411,"Kicker":"Philosophy Work","Title":"On the Nature of the Celestial Sphere","Deck":"Interprets celestial nature and motion within al-Kindi\u0027s cosmological philosophy.","BackLink":{"Text":"Back to Abu Yusuf al-Kindi","Url":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/al-kindi-ya-qub-ibn-ishaq-al-kindi/"},"AuthorCard":{"Label":"Author","Title":"Abu Yusuf al-Kindi","Url":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/al-kindi-ya-qub-ibn-ishaq-al-kindi/","MediaHref":"","ImageSrc":"https://chrisdeasy.com/wp-content/uploads/al-kindi-ya-qub-ibn-ishaq-al-kindi-01-al-kindi-on-iraqi-stamp-from-1962.jpg","ImageAlt":"Abu Yusuf al-Kindi on a 1962 Iraqi stamp","FilterTerra":"Persia","ClickText":"Abu Yusuf al-Kindi","ClickHref":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/al-kindi-ya-qub-ibn-ishaq-al-kindi/","Copies":["801 CE – 873 CE","Kufa","Kufa-born Abbasid philosopher who turned Greek metaphysics, logic, medicine, optics, mathematics, music, and theology into an Arabic philosophical program, arguing for divine unity, finite creation, intellect, soul, and disciplined ethical life."]},"ContextCards":[{"Label":"Period","Key":"Period:2","Title":"Medieval History","DateText":"500 CE – 1499 CE","Url":"https://chrisdeasy.com/theos/humanities/philosophy/eras-of-thought/philosophers-of-medieval-history/"},{"Label":"Era","Key":"Era:4","Title":"Early Medieval","DateText":"500 CE – 999 CE","Url":"https://chrisdeasy.com/theos/humanities/philosophy/eras-of-thought/philosophers-of-medieval-history/philosophers-of-early-medieval/"},{"Label":"Composition","Title":"836 CE","Url":"","DateText":""}],"DateNote":"Approximate chronological placement used for ordering the al-Kindi corpus; surviving evidence does not preserve a precise autographed composition date.","GeoCards":[{"Label":"Region","Key":"Region:2"},{"Label":"Terra Avita","Key":"TerraAvita:3"},{"Label":"Terra Avita Region","Key":"TerraAvitaRegion:12"},{"Label":"Modern Country","Key":"Country:IRQ:3"}],"OriginalTitle":"Fi tabiat al-falak","Language":"Arabic","DisciplineCards":[{"Label":"Primary Discipline","Key":"Discipline:philosophy-of-science"},{"Label":"Secondary Discipline","Key":"Discipline:metaphysics"}],"Tradition":"Early Arabic philosophy; Abbasid translation movement; Islamic Aristotelianism; Neoplatonic reception","FullText":null,"CoreThesis":["Interprets celestial nature and motion within al-Kindi\u0027s cosmological philosophy."],"Classification":{"AlternateTitles":"On the Celestial Sphere","KeyConcepts":"celestial sphere, motion, cosmos, nature, astronomy","Methodology":"Arabic philosophical definition, Aristotelian demonstration, Neoplatonic adaptation, mathematical-scientific analysis, and rational theological argument.","Structure":"Short ninth-century treatise or treatise cluster transmitted in Arabic, Latin, Hebrew, or modern edited fragments."},"Arguments":["Al-Kindi adapts Greek philosophy into Arabic arguments about unity, intellect, soul, causality, language, nature, mathematics, and divine transcendence."],"Influence":{"InfluencedBy":"Aristotle, Plotinus, Proclus, the Theology of Aristotle, late antique Neoplatonism, Greek mathematical science, and the Abbasid translation movement.","InfluenceOn":""},"Significance":["Included in the philosophy-core al-Kindi corpus matrix from SEP, MuslimPhilosophy/Routledge, edited-text evidence, and manuscript/source scans.","Important for early Arabic philosophy, the creation of philosophical Arabic, Islamic metaphysics, intellect theory, scientific method, and the transmission of Greek philosophy."],"EvidenceNote":["Accepted as a cosmological work; 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