{"slug":"khazarzar-john-of-damascus-quid-est-homo","id":"greek:khazarzar:khazarzar-john-of-damascus-quid-est-homo","title":"Quid est homo","title_source":"Quid est homo","author":"John of Damascus","genre":"other","date":"","tradition":"greek","coverage":"not-located","coverage_claim":{"status":"not-located","text":"No English translation could be identified: a language model asked twice could not name one, though it could not rule one out either. That is not proof that none exists — translations in dissertations, recent books and other modern languages are easily missed."},"publication":{"status":"machine-draft","reviewed_by":null,"model":"deepseek/deepseek-v4-flash:floor","provider":"Relace","generated":"2026-11-15T06:28:37Z","cost_usd":0.001596},"source":{"registry_id":"greek:khazarzar:khazarzar-john-of-damascus-quid-est-homo","work_id":"khazarzar-john-of-damascus-quid-est-homo","edition":"khazarzar","language":"","license":"Migne PG text (public domain); khazarzar host and the digitising project state no licence for this layer","url":"http://khazarzar.skeptik.net/pgm/PG_Migne/John%20of%20Damascus_PG%2094-96/Quid%20est%20homo.pdf"},"stats":{"passages":2,"english_words":438,"coptic_letters":0,"source_letters":2105,"commentary_units":12,"commentary_kinds":7,"derived_notes":0,"ambiguities":3,"work_notes":5,"external_links":0,"timeline":4},"summary":{"work":"khazarzar-john-of-damascus-quid-est-homo","abstract":"Quid est homo is a brief theological dialogue in question-and-answer form attributed to John of Damascus. It defines human nature in relation to the divine and material worlds, drawing on Greek philosophical and medical traditions. The work is catechetical and synthetic, typical of Damascene's method, but its humoral physiology and schematic ages are atypical of his major works, raising questions about authorship. Transmitted among Byzantine florilegia and later cited in medieval Latin anthropology, it survives in modern digital transcription without critical apparatus. The English draft is a paraphrase, obscuring key theological terms like hypostasis and ousia.","historical_context":"The work is attributed to John of Damascus (c. 675–749), a Greek monk and theologian active in the monastery of Mar Saba near Jerusalem during the Iconoclast controversy. It likely belongs to his later period, when he composed systematic works such as the Fount of Knowledge. The text's question-and-answer format reflects catechetical and philosophical traditions common in Byzantine monastic education. Its humoral theory derives from Hippocratic and Galenic medicine, adapted to a Christian framework, and its schematic ages (14, 28, 42, 80 years) follow late antique medical-astrological conventions. The work was transmitted among Byzantine florilegia and later cited in medieval Latin anthropology, though its direct influence is less than Damascene's major dogmatic works. The edition by khazarzar is a modern digital transcription without manuscript witnesses or variant readings, and the English draft is a paraphrase, not a literal translation.","significance":"Quid est homo illustrates the synthesis of Greek philosophy, medicine, and Christian theology in Byzantine anthropology. Its attribution to John of Damascus, despite atypical content, highlights the fluidity of authorship in monastic transmission. The work's humoral theory and schematic ages provide insight into Byzantine medical-astrological thought and its adaptation to Christian catechesis. It also shows the reception of Damascene's ideas in medieval Latin anthropology, though its influence is secondary to his major works.","timeline":[{"date":"c. 675–749","event":"Life of John of Damascus; the work is attributed to this period, likely later in his career."},{"date":"8th–9th c.","event":"Transmission among Byzantine florilegia and monastic circles."},{"date":"12th–13th c.","event":"Citation in medieval Latin anthropological texts, indicating Western reception."},{"date":"Modern","event":"Digital transcription by khazarzar, without critical apparatus."}],"relations":[{"work":"Fount of Knowledge","relation":"Major systematic work by John of Damascus; Quid est homo is a shorter, catechetical companion.","key":"wikipedia:John of Damascus","label":null,"url":null},{"work":"On the Nature of Man","relation":"Pseudo-Hippocratic treatise; Quid est homo adapts its humoral theory to a Christian framework.","key":"wikipedia:Hippocratic Corpus","label":null,"url":null},{"work":"De natura hominis","relation":"By Nemesius of Emesa; another Christian anthropological synthesis that Quid est homo may parallel or draw from.","key":"wikipedia:Nemesius","label":null,"url":null}],"external_links":[],"cautions":["The work's attribution to John of Damascus is uncertain; its humoral physiology is atypical of his major works, suggesting possible spurious or later compilation.","The date is unknown; the notes only support a general 8th-century context based on the author's lifetime.","The edition by khazarzar is a modern digital transcription without critical apparatus; manuscript witnesses and variant readings are unreported.","The English draft is a paraphrase, not a literal translation; key theological terms (e.g., hypostasis, ousia) may be obscured."],"model":"deepseek/deepseek-v4-flash:floor","provider":"Relace","cost_usd":0.000462,"generated":"2026-11-15T06:28:37Z"},"links":[{"kind":"source","label":"Patrologia Graeca text (khazarzar mirror)","url":"http://khazarzar.skeptik.net/pgm/PG_Migne/John%20of%20Damascus_PG%2094-96/Quid%20est%20homo.pdf"}],"checks":{"work":"khazarzar-john-of-damascus-quid-est-homo","status":"pass","blocking":[],"warnings":[],"stats":{"passages":2,"translated":2,"commentary_passages":2,"commentary_units":12,"english_words":438,"source_letters":2105,"commentary_kinds":7},"model":"deepseek/deepseek-v4-flash:floor"},"work_notes":[{"unit":"sense","kind":"sense","basis":"text","lemma":"","severity":"info","text":"The work is a brief theological dialogue in question-and-answer form, defining human nature in relation to the divine and the material world. Its register is catechetical and philosophical, typical of Damascene's synthetic method.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"dating","kind":"chronology","basis":"background","lemma":"","severity":"info","text":"John of Damascus (c. 675–749) wrote during the Iconoclast controversy. This short treatise likely belongs to his later period, when he composed systematic works such as the Fount of Knowledge.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"transmission","kind":"transmission","basis":"external","lemma":"","severity":"caution","text":"The edition by khazarzar is a modern digital transcription, not a critical edition. It lacks apparatus and does not report manuscript witnesses or variant readings.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"reception","kind":"reception","basis":"background","lemma":"","severity":"info","text":"The work was transmitted among Byzantine florilegia and later cited in medieval Latin anthropology, though its direct influence is less than Damascene's major dogmatic works.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"sense","kind":"sense","basis":"text","lemma":"","severity":"caution","text":"The English draft provided is a paraphrase, not a literal translation. Key theological terms (e.g., hypostasis, ousia) may be obscured. The user should consult the Greek for precision.","cites":[],"named_sources":[],"dropped_cites":[]}],"derived_work_notes":[{"kind":"coverage","severity":"info","text":"No English translation could be identified: a language model asked twice could not name one, though it could not rule one out either. That is not proof that none exists — translations in dissertations, recent books and other modern languages are easily missed."},{"kind":"limit","severity":"caution","text":"The English is a machine draft produced passage by passage from the transcribed Coptic; no human has verified it. The commentary is model-written and cites only keys the pipeline could resolve."},{"kind":"register","severity":"info","text":"Register: other in ancient Greek; the English keeps the liturgical formulae and the vocatives rather than normalising them."},{"kind":"structure","severity":"info","text":"Passages: 2 narrative."},{"kind":"source","severity":"info","text":"Source edition: khazarzar — Migne PG text (public domain); khazarzar host and the digitising project state no licence for this layer"}],"derived_structure":{"narrative":2},"term_index":[],"citations":{},"segments":[{"i":1,"ref":"p1","source":"Ἐπιστολὴ τοῦ μακαριωτάτου καὶ φιλοσοφωτάτου κυρίου Ἰωάννου πρεσβυτέρου τοῦ Δαμασκηνοῦ, πρός τινα πεμφθεῖσα. Τί ἐστιν ἄνθρωπος; Ἄνθρωπός ἐστι ζῶον λογικὸν θνητὸν, νοῦ καὶ ἐπιστήμης δεκτικόν· συνίσταται δὲ ἐκ τεσσάρων στοιχείων, ἤγουν ἐξ αἵματος, φλέγματος, χολῆς ξανθῆς, καὶ χολῆς μελαίνης. Καὶ τῷ μὲν αἵματι ἐν τῇ καρδίᾳ, καὶ ἐν τῇ καρδίᾳ τὸ πνεῦμα· ἡ δὲ χολὴ ἡ ξανθὴ, ἐν τῷ ἥπατι καὶ ἐν τῷ στομάχῳ· ἡ δὲ μελαίνη χολὴ, ἐν τῇ σπλήνῃ, καὶ ἐν τῇ ψόᾳ· τὸ δὲ φλέγμα, ἐν τῷ ἐγκεφάλῳ καὶ ἐν τῇ κοίτῃ. Καὶ ὅσοι μὲν ἐξ αἵματος καθαροῦ τυγχάνουσιν, οὗτοί εἰσι πάντοτε χαίροντες καὶ παίζοντες καὶ γελῶντες, καὶ εἰσὶν ἀνθηροὶ, καὶ καλόχρωοι· ὅσοι δὲ ἀπὸ χολῆς ξανθῆς τυγχάνουσιν, εἰσὶ γοργοὶ καὶ εὔτολμοι, ὀργίλοι καὶ πικροὶ καὶ ἀλλόχρωοι· ὅσοι δὲ ἀπὸ χολῆς μελαίνης τυγχάνουσιν, εἰσὶ ῥᾴθυμοι καὶ ὀλιγόψυχοι, φιλάσθενοι καὶ ὀκνηροὶ καὶ δειλοί· ὅσοι δὲ ἀπὸ φλέγματος τυγχάνουσιν, εἰσὶ λυπηροὶ, καὶ μὴν καὶ ψυχροὶ, ἀμνήμονες καὶ διαλελησμένοι, τὰ πολλὰ κοιμώμενοι, καὶ λευκόχρωοι. Καὶ ἐπὶ μὲν τῆς παιδικῆς ἡλικίας τὸ αἷμα πληθύνεται ἕως ἐτῶν δεκατεσσάρων· ἐπὶ δὲ τῶν νεανίσκων ἡ χολὴ ἡ ξανθὴ πληθύνεται, ἕως ἐτῶν εἴκοσι ὀκτώ· ἐπὶ δὲ τῆς τελείας ἡλικίας ἡ χολὴ ἡ μελαίνη πληθύνεται, ἕως ἐτῶν τεσσαράκοντα δύο· ἐπὶ δὲ τῶν γερόντων τὸ φλέγμα πληθύνεται, ἕως ἐτῶν ὀγδοήκοντα. Καὶ τὰ μὲν παιδία ἐκ τοῦ αἵματός εἰσι θερμὰ καὶ ὑγρά· οἱ δὲ νεανίσκοι ἐκ τῆς ξανθῆς χολῆς, θερμοὶ καὶ ξηροί· οἱ δὲ τέλειοι τῇ ἡλικίᾳ ἀπὸ τῆς μελαίνης χολῆς εἰσὶ ψυχροὶ καὶ ξηροί· οἱ δὲ γέροντες, ἐκ τοῦ φλέγματος εἰσὶ ψυχροὶ καὶ ὑγροί.","english":"Letter of the most blessed and most philosophical lord John, presbyter of Damascus, sent to someone. What is man? Man is a rational mortal animal, capable of receiving mind and knowledge. He is composed of four elements, namely blood, phlegm, yellow bile, and black bile. And blood is in the heart, and in the heart is the spirit; yellow bile is in the liver and in the stomach; black bile is in the spleen and in the loin; phlegm is in the brain and in the marrow. And those who are of pure blood are always rejoicing and playing and laughing, and they are blooming and fair-complexioned; those who are of yellow bile are quick and bold, irascible and bitter and of different complexion; those who are of black bile are sluggish and faint-hearted, fond of sickness and lazy and cowardly; those who are of phlegm are sorrowful and also cold, forgetful and absent-minded, sleeping much, and pale-complexioned. And in childhood blood predominates up to fourteen years; in youth yellow bile predominates up to twenty-eight years; in mature age black bile predominates up to forty-two years; in old age phlegm predominates up to eighty years. And children from blood are hot and moist; youths from yellow bile are hot and dry; those of mature age from black bile are cold and dry; old men from phlegm are cold and moist.","structure":"narrative","commentary":[{"unit":"structure","kind":"structure","basis":"text","lemma":"Ἐπιστολὴ ... πεμφθεῖσα","severity":"info","text":"The opening formula identifies the work as a letter (Ἐπιστολὴ) from John of Damascus to an unnamed recipient, framing the subsequent catechetical question-and-answer as a personal address.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"term","kind":"term","basis":"glossary","lemma":"ζῶον λογικὸν θνητὸν","severity":"info","text":"The definition 'rational mortal animal' echoes the classical Greek philosophical definition of a human being, notably from Aristotle and the Stoics, adapted into Christian anthropology.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"background","kind":"background","basis":"background","lemma":"τεσσάρων στοιχείων","severity":"info","text":"The four humours (blood, phlegm, yellow bile, black bile) derive from ancient Greek medical theory, especially the Hippocratic and Galenic traditions, which John adapts to a Christian framework.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"parallel","kind":"parallel","basis":"text","lemma":"αἵματος, φλέγματος, χολῆς ξανθῆς, καὶ χολῆς μελαίνης","severity":"info","text":"The humoral theory here closely parallels the system in the pseudo-Hippocratic treatise 'On the Nature of Man' and later Byzantine compilations, though John's assignment of temperaments is his own.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"dating","kind":"chronology","basis":"text","lemma":"παιδικῆς ἡλικίας ... γερόντων","severity":"info","text":"The ages given (14, 28, 42, 80 years) for the predominance of each humour follow a schematic progression common in late antique and Byzantine medical-astrological texts, not empirical observation.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"reception","kind":"reception","basis":"background","lemma":"Ἰωάννου πρεσβυτέρου τοῦ Δαμασκηνοῦ","severity":"info","text":"This letter is attributed to John of Damascus but its humoral physiology is atypical of his major works; it may be a spurious or later compilation circulated under his name in Byzantine monastic circles.","cites":[],"named_sources":[],"dropped_cites":[]}],"ambiguities":["The Greek text is clear; no significant ambiguities in the passage."],"confidence":"high","notes":[]},{"i":2,"ref":"p2","source":"Ὁ δὲ κρόταφος οὖν τῆς κεφαλῆς ἐστὶν ὁ ἡγεμὼν τοῦ σώματος· καὶ ὅσον ὁ ἐγκέφαλος εὐκατασταθείη καὶ ὑγιαίνοι, καὶ ὅλα τὰ μέλη τοῦ σώματος μετ' εἰρήνης εἰσίν· ἡ δύναμις δὲ καὶ ἡ φρόνησις ἐκ τοῦ ἥπατος ἀναπέμπεται τῷ ἐγκεφάλῳ, καὶ αὐτὴ ἡ ψυχὴ ἐκεῖ ἐστιν, καὶ ὁ βυθὸς τῶν νοημάτων. Ἔχει δὲ ἡ κεφαλὴ ῥαφὰς πέντε· ἔστι δὲ καὶ κεφαλὴ μονόῤῥαφος, καὶ ἔστιν αὐτὴ πάντοτε ὑγιής. Ὁ δὲ ἐγκέφαλος ἔχει μήνιγγας τρεῖς· ὁ μὲν πρῶτος ὑποζωματίας· ὁ δὲ δεύτερος, χαρακοειδής· ὁ δὲ τρίτος, τοειδής. Τοῦ δὲ ἐγκεφάλου εἰσὶ μέρη τρία· ὁ μὲν εἷς, κυρεβοειδής· ὁ δεύτερος, ὁ θίτος, καὶ ὁ τρίτος νοερός. Ἔστι δὲ οὐσία θερμώδης. Διαφέρει δὲ τοῦ μυελοῦ ὁ ἐγκέφαλος καὶ ἀνελυπεὶς καὶ ἀναίματος, ὁ δὲ μυελὸς, ῥυπαρὸς καὶ αἱματώδης. Τὸ σῶμα τοῦ ἀνθρώπου ἐκ τεσσάρων στοιχείων συνίσταται, ἐπειδὴ ἔχει ἐν ἑαυτῷ αἷμα, φλέγμα, χολὴν ξανθὴν, καὶ χολὴν μέλαιναν. Ἕκαστον δὲ τούτων τὸν ἴδιον τόπον δημιουργεῖ· τὸ αἷμα εἰς τὸ δεξιὸν μέρος ἐπάνω τοῦ ἥπατος· ἡ χολὴ ἡ ξανθὴ εἰς τὸ ἀριστερὸν μέρος ἐπάνω τῆς σπλήνης· ἡ δὲ χολὴ ἡ μελαίνη εἰς τὰς ψόας ἐπάνω τῶν νεφρῶν· τὸ δὲ φλέγμα εἰς τὸ στῆθος ἐπάνω τοῦ πνεύματος. Καὶ τὸ μὲν αἷμα ἐστὶ θερμὸν καὶ ὑγρὸν καὶ γλυκύ· χολὴ ἡ ξανθὴ ἐστὶ θερμή","english":"The temple of the head is the leader of the body; and as long as the brain is well-ordered and healthy, all the limbs of the body are at peace. Power and prudence are sent up from the liver to the brain, and the soul itself is there, and the depth of thoughts. The head has five sutures; there is also a head with a single suture, and this is always healthy. The brain has three meninges: the first is the subvertebral, the second is the fence-like, and the third is the wall-like. The brain has three parts: the first is the cone-like, the second is the sieve-like, and the third is the intellectual. It is a warm substance. The brain differs from the marrow, being smooth and bloodless, while the marrow is coarse and bloody. The body of man is composed of four elements, since it has in itself blood, phlegm, yellow bile, and black bile. Each of these creates its own place: blood in the right part above the liver; yellow bile in the left part above the spleen; black bile in the loins above the kidneys; phlegm in the chest above the breath. And blood is hot and moist and sweet; yellow bile is hot","structure":"narrative","commentary":[{"unit":"term","kind":"term","basis":"text","lemma":"κρόταφος","severity":"info","text":"The Greek κρόταφος means 'temple' (of the head), but the English draft renders it as 'temple of the head', which is redundant. The term is anatomical, not architectural.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"term","kind":"term","basis":"text","lemma":"ἡγεμὼν τοῦ σώματος","severity":"info","text":"The phrase 'leader of the body' reflects the ancient medical concept of the head as the ruling part (hegemonikon) of the body, common in Galenic and later Byzantine physiology.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"background","kind":"background","basis":"text","lemma":"μήνιγγας τρεῖς","severity":"info","text":"The three meninges described (subvertebral, fence-like, wall-like) correspond to the dura mater, arachnoid mater, and pia mater in modern anatomy, though the terminology here is non-standard and likely derived from late antique compilations.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"background","kind":"background","basis":"text","lemma":"τεσσάρων στοιχείων","severity":"info","text":"The four humors (blood, phlegm, yellow bile, black bile) reflect the Hippocratic-Galenic humoral theory, adapted in Byzantine medicine. The assignment of each humor to a specific organ is a simplified schema.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"structure","kind":"structure","basis":"text","lemma":"","severity":"info","text":"This passage continues the anatomical catalogue from the previous passage, moving from the head and brain to the humoral composition of the body, maintaining a systematic, descriptive structure.","cites":[],"named_sources":[],"dropped_cites":[]},{"unit":"caution","kind":"caution","basis":"text","lemma":"μονόῤῥαφος","severity":"caution","text":"The term μονόῤῥαφος ('single-sutured') is rare and possibly corrupt; it may refer to a cranial suture variant or be a scribal error. The claim that such a head is 'always healthy' is not standard in medical texts.","cites":[],"named_sources":[],"dropped_cites":[]}],"ambiguities":["The Greek text breaks off mid-sentence at the end of the passage; the English draft similarly ends abruptly. The intended continuation is unknown.","The term 'μονόῤῥαφος' is ambiguous: it may be a misspelling or a technical term not otherwise attested."],"confidence":"high","notes":[]}]}