Positive reconstruction · reader-scoped, not an inferred-absence lacuna
This reconstruction covers the readable fraction of Thomas Jefferson's formation -- attested reading and writing only, not the whole of a life.
Thomas Jefferson and De Officiis
Thomas Jefferson's attested relationship to De Officiis.
Thomas Jefferson is attested as having owned this work by Marcus Tullius Cicero.
Evidence ledger
- Sowerby's catalogue documents that Jefferson's library included Cicero's De Officiis; Jefferson repeatedly named Cicero as a formative influence on his political thought.
Concepts moved from this book
- Absorbed -> Marcus Tullius Cicero
Activated connections
- echoed_in -> source:2895 (confidence 0.60)
Authored synthesis · grounding-audited
Jefferson and De Officiis
Sowerby's catalogue of Jefferson's library records his ownership of Cicero's De Officiis, and Jefferson's own correspondence repeatedly names Cicero among the ancient authors who shaped his political thought -- a formative influence attested independently of the catalogue entry itself. The one activated internal connection this build has detected between this book and Jefferson's own writing is a deterministic echo match: the phrase "life, liberty and the pursuit of" recurs between an attested De Officiis-adjacent reading gloss and the Declaration of Independence, recorded here as an absorbed move at low-moderate confidence (the specific triad phrasing is closer to Locke's natural-rights formula than to any Ciceronian source, so this is read as a loose civic-welfare resonance, not a borrowed line).
Authored by claude-sonnet-5-in-session:biblicosm-density-book1-authorship-20260702 · grounding audit by claude-sonnet-5-auditor-in-session:biblicosm-density-book1-audit-20260702. Claims above are annotated to graph rows in the evidence ledger; this synthesis is generated-then-annotated over the judged graph, never a parallel source of truth.