{
    "schema": "prokopton42-public-passage-v1",
    "id": "sextus_empiricus.against_professors",
    "canonical_url": "https://prokopton42.com/en/works/sextus-empiricus/against-professors/livre-1/passage-32/",
    "language": "en",
    "title": "Against the Professors, Books I-VI of Against the Learned",
    "author": "Sextus Empiricus",
    "date": "c. 180-220 CE",
    "summary": "The first six books of Against the Learned examine grammar, rhetoric, geometry, arithmetic, astrology, and music. Sextus targets these disciplines’ theoretical claims while sometimes distinguishing useful practices from disputed dogmatic foundations.",
    "learning": "Identify the target within each discipline, distinguish empirical use from dogmatic foundation, and compare recurring structures of sceptical refutation.",
    "long_summary": "Each book asks what a discipline teaches, how its principles are established, and whether its experts agree. Circular definitions, indeterminate units, proofs depending on what they must demonstrate, and conflicts of method feed criticism.\n\nThe grouping follows a transmitted series, not six independent modern monographs. Sextus does not necessarily abolish everyday reading, calculation, or musical practice; he attacks the status of certain science claimed by theorists. This distinction prevents confusing scepticism with wholesale rejection of skill.",
    "historical_context": "The corpus manifests do not yet establish the precise place and circumstances of composition. The images below document the author’s world or the text’s transmission. They do not claim to show the exact scene of writing.",
    "material_world_label": "Roman world, 1st century BCE to 3rd century CE",
    "material_world": {
        "technology": "Paved roads, aqueducts, concrete, glassware, mills, and hypocaust heating equip some cities, but energy comes mainly from bodies, animals, water, and wood.",
        "science": "Astronomy, geometry, natural history, and engineering compile Greek, Egyptian, and Roman knowledge. Measurement exists without a modern laboratory.",
        "medicine": "Physicians, midwives, baths, plants, and rudimentary surgery can help; reliable anaesthesia, antisepsis, and antibiotics do not exist.",
        "transport": "On foot, horseback, cart, or ship, road and sea networks connect the Empire. Travel remains slow, costly, and risky.",
        "agriculture": "Grain, vines, olives, pulses, and livestock supply cities and armies; estates, slavery, and tenancy organize part of the labour.",
        "communication": "Imperial couriers, letters on papyrus or tablets, inscriptions, and oral proclamations spread information. Everything is copied by hand.",
        "clothing": "Tunics and cloaks are common to both sexes; the stola, toga, footwear, colours, and jewellery mark citizenship, office, wealth, and origin."
    },
    "material_world_scenes": [
        {
            "asset": "/assets/timeline/landmarks/09-54-ce/world-01.webp",
            "title": "Technology, science, and care",
            "description": "Paved roads, aqueducts, concrete, glassware, mills, and hypocaust heating equip some cities, but energy comes mainly from bodies, animals, water, and wood. Astronomy, geometry, natural history, and engineering compile Greek, Egyptian, and Roman knowledge. Measurement exists without a modern laboratory. Physicians, midwives, baths, plants, and rudimentary surgery can help; reliable anaesthesia, antisepsis, and antibiotics do not exist."
        },
        {
            "asset": "/assets/timeline/landmarks/09-54-ce/world-02.webp",
            "title": "Travel and communication",
            "description": "On foot, horseback, cart, or ship, road and sea networks connect the Empire. Travel remains slow, costly, and risky. Imperial couriers, letters on papyrus or tablets, inscriptions, and oral proclamations spread information. Everything is copied by hand."
        },
        {
            "asset": "/assets/timeline/landmarks/09-54-ce/world-03.webp",
            "title": "Farming and food",
            "description": "Grain, vines, olives, pulses, and livestock supply cities and armies; estates, slavery, and tenancy organize part of the labour."
        },
        {
            "asset": "/assets/timeline/landmarks/09-54-ce/world-04.webp",
            "title": "Clothing, women and men",
            "description": "Tunics and cloaks are common to both sexes; the stola, toga, footwear, colours, and jewellery mark citizenship, office, wealth, and origin."
        }
    ],
    "intellectual_tradition": {
        "id": "skepticism",
        "label": "Skepticism"
    },
    "period": {
        "id": "ancient",
        "label": "Antiquity"
    },
    "languages": [
        "grc",
        "en",
        "fr"
    ],
    "manifestations": [
        {
            "coverage": "complete",
            "file": "data/corpus/normalized/sextus_empiricus/against_professors/representations/grc.ndjson",
            "language": "grc",
            "records": 757,
            "role": "original",
            "sha256": "818f3e6ecf013da581f8c7812e4271b9f5c784541c906db4e52c6be6908355dd",
            "source_id": "adversus-grc"
        },
        {
            "coverage": "complete",
            "file": "data/corpus/normalized/sextus_empiricus/against_professors/representations/ai-generated/en-gpt-5-6-sol-corpus-passage-translation-v1.ndjson",
            "generated_on": "2026-09-11",
            "language": "en",
            "model": "gpt-5.6-sol",
            "official_status": "non_official",
            "prompt_version": "corpus-passage-translation-v1",
            "provider": "codex_subscription",
            "records": 757,
            "role": "ai_generated_translation_non_official",
            "sha256": "39ee6e31d53e5d9eb8449fd11932023e1b0513ebf336c2c7a2e1c3c198e92ec0",
            "source_id": "prokopton42-codex-translation:gpt-5.6-sol:corpus-passage-translation-v1",
            "translation_type": "ai_generated_translation"
        },
        {
            "coverage": "complete",
            "file": "data/corpus/normalized/sextus_empiricus/against_professors/representations/ai-generated/fr-gpt-5-6-sol-corpus-passage-translation-v1.ndjson",
            "generated_on": "2026-09-11",
            "language": "fr",
            "model": "gpt-5.6-sol",
            "official_status": "non_official",
            "prompt_version": "corpus-passage-translation-v1",
            "provider": "codex_subscription",
            "records": 757,
            "role": "ai_generated_translation_non_official",
            "sha256": "91112d9c16fea68ee4fb7a5428f9312148d31fc2d51b920fe80a6aaa5bf5f305",
            "source_id": "prokopton42-codex-translation:gpt-5.6-sol:corpus-passage-translation-v1",
            "translation_type": "ai_generated_translation"
        }
    ],
    "concepts": [
        {
            "id": "equipollence",
            "label": "Equipollence"
        },
        {
            "id": "forms",
            "label": "Intelligible forms"
        },
        {
            "id": "knowledge",
            "label": "Knowledge"
        },
        {
            "id": "suspension_of_judgment",
            "label": "Suspension of judgment"
        }
    ],
    "source_work_ids": [
        "sextus_empiricus.against_professors"
    ],
    "passages": 757,
    "word_count": 50554,
    "word_counts_by_language": {
        "en": 50554,
        "fr": 51515,
        "grc": 43471
    },
    "editorial_status": "gpt_5_6_semantic_draft_v1",
    "structure": {
        "citation_scheme": "sextus-book-section-v1",
        "kind": "native",
        "levels": [
            {
                "key": "book",
                "label_fr": "Livre",
                "label_en": "Book"
            },
            {
                "key": "section",
                "label_fr": "Section",
                "label_en": "Section"
            }
        ],
        "leaf_fr": "Section",
        "leaf_en": "Section"
    },
    "canonical_passage_id": "passage:sextus_empiricus.against_professors:1.32",
    "canonical_ref": "1.32",
    "canonical_parent_ref": null,
    "canonical_parent_id": null,
    "representations": [
        {
            "language": "grc",
            "text": "οὔτε ὁ ἄτεχνος τὸν τεχνίτην· ὅμοιον γὰρ ὡς εἴ τις λέγοι τὸν βλέποντα ὑπὸ τοῦ πεπηρωμένου ὁδη- γεῖσθαι. καὶ γὰρ ὁ ἄτεχνος πρὸς τὰ τεχνικὰ τῶν θεω- ρημάτων πεπηρωμένος οὐκ ἂν δύναιτό τινα διδάσκειν ἂ μηδὲ τὴν ἀρχὴν οἶδεν, καὶ ὁ τεχνίτης διαβλέπων ἐν τοῖς τεχνικοῖς θεωρήμασι καὶ γνῶσιν αὐτῶν ἐσχηκὼς οὐ δεή- σεται τοῦ διδάξοντος.",
            "translator": "Hermann Mutschmann and Jürgen Mau, editors",
            "edition": "adversus-grc",
            "source_id": "adversus-grc",
            "translation_type": "original"
        },
        {
            "language": "en",
            "text": "Nor can the unskilled person teach the expert, for that would be like saying that one who sees is guided by one who is blind. The unskilled person, being blind to technical principles, cannot teach anyone things of which he has no knowledge at all; while the expert, seeing clearly in technical principles and possessing knowledge of them, will not need anyone to teach him.",
            "translator": "Codex gpt-5.6-sol",
            "edition": "Prokopton42 non-official AI translation, 2026-09-11",
            "source_id": "prokopton42-codex-translation:gpt-5.6-sol:corpus-passage-translation-v1",
            "translation_type": "ai_generated_translation",
            "official_status": "non_official",
            "generation_model": "gpt-5.6-sol"
        },
        {
            "language": "fr",
            "text": "L’homme sans art ne peut pas davantage enseigner à l’homme de l’art. Ce serait comme dire que celui qui voit est guidé par un aveugle. Car l’homme sans art, aveugle aux théorèmes techniques, ne saurait enseigner à quelqu’un ce qu’il ne connaît absolument pas, tandis que l’homme de l’art, qui voit clairement ces théorèmes et en possède la connaissance, n’aura pas besoin d’un enseignant.",
            "translator": "Codex gpt-5.6-sol",
            "edition": "Prokopton42 non-official AI translation, 2026-09-11",
            "source_id": "prokopton42-codex-translation:gpt-5.6-sol:corpus-passage-translation-v1",
            "translation_type": "ai_generated_translation",
            "official_status": "non_official",
            "generation_model": "gpt-5.6-sol"
        }
    ],
    "content_checksum": "2a2d988ac8a422a9f8dbd726cb645035c186d91f8cf0c39bc77d40aad2477575"
}