Evidence
Each row links back to the complete public-domain source text and the structured extraction record.
| Tradition | Source | Passage | Confidence | Evidence | Record |
|---|---|---|---|---|---|
| Greek | The Republic | BOOK VII. / BOOK VIII. / BOOK IX. / BOOK X.; lines 23489-23651 | medium | Socrates describes optical confusion: size changes with distance, objects appear straight outside water and crooked in water, concave becomes convex through colour illusion, and conjuring or deception by light and shadow affects the mind like magic. | record |