Attribution
Credits
All imagery in the codex is verified public domain. Sources, attributions, and licences are listed below.

Marcus Aurelius bust (Louvre / MET, c. 161–176 AD)
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Photo by Pierre-Selim Huard / Louvre MR 561, on loan to Metropolitan Museum of Art / CC0 via Wikimedia Commons

Epictetus engraving (Henri Bonnart, c. 1700)
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Engraving by Henri Bonnart (1642–1711) / Public domain via Wikimedia Commons

The Bust of Seneca in a Niche (after Rubens, c. 1620)
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Lucas Vorsterman I after Peter Paul Rubens, c. 1620 / Metropolitan Museum of Art Open Access (51.501.7454) / CC0

Zeno of Citium, drawing after Farnese marble bust
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Drawing of marble bust, Farnese Collection, National Archaeological Museum of Naples (inv. 6128) / Public domain via Wikimedia Commons

Cleanthes (Theodoor Galle after Rubens, 1605)
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Engraving by Theodoor Galle (1571–1633) after Peter Paul Rubens, from L. Annaei Senecae philosophi Opera (1605) / Public domain via Wikimedia Commons

Chrysippus bust (British Museum)
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Photo by ChrisO (2006), released public domain / Marble, British Museum / Public domain via Wikimedia Commons

Bust of Socrates (Roman copy after Lysippos)
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Photo by Luciusmichael, released public domain / Roman copy after Lysippos, 1st c. AD / Public domain via Wikimedia Commons

Imaginary View of Rome with Equestrian Statue of Marcus Aurelius (Hubert Robert, 1786)
CC0
Hubert Robert (1733–1808), 1786 / National Museum of Western Art, Tokyo (P.1976-0002) / CC0 via Wikimedia Commons

Aristotle Physics, medieval Latin manuscript (Vatican Apostolic Library)
PD-Art
Faithful reproduction of medieval manuscript, Bibliotheca Apostolica Vaticana / Public domain via Wikimedia Commons

Meditations of Marcus Aurelius (Casaubon translation, 1635)
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Title page of Meditations, trans. Meric Casaubon, 2nd ed. 1635 / Public domain via Wikimedia Commons

Planisphaerum Coeleste (Frederik de Wit, 1670)
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Celestial map by Frederik de Wit (c. 1630–1706), Amsterdam, 1670 / Public domain via Wikimedia Commons

Capriccio with Ruins of the Roman Forum (Claude Lorrain, c. 1634)
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Claude Lorrain (1604/1605–1682), c. 1634 / Art Gallery of South Australia / Public domain via Wikimedia Commons

Frontispiece, Arrian's Enchiridion of Epictetus (1683 edition)
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Frontispiece from Arrianus, Tactica, Periplus, Epicteti Enchiridion, 1683 / Public domain via Wikimedia Commons

Frontispiece, Discourses of Epictetus (early printed edition)
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Frontispiece illustration, early printed edition of Epictetus's Discourses / Public domain via Wikimedia Commons

The Penitent Magdalene with a Candle (Georges de La Tour, c. 1640)
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Georges de La Tour (1593–1652) / Public domain via Wikimedia Commons

The Astronomer (Johannes Vermeer, 1668)
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Johannes Vermeer (1632–1675), oil on canvas, 1668 / Musée du Louvre, Paris / Public domain via Wikimedia Commons

Still Life with Fish (Pieter Claesz, c. 1647)
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Pieter Claesz (c. 1597/98–1660) / Rijksmuseum, Amsterdam (SK-A-1857) / CC0

Astronomer by Candlelight (Gerrit Dou, late 1650s)
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Gerrit Dou (1613–1675) / J. Paul Getty Museum / Public domain via Wikimedia Commons (Google Art Project)

Xanthippe Dousing Socrates (Reyer van Blommendael, c. 1655)
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Reyer Jacobsz. van Blommendael (c. 1628–1675), c. 1655 / Public domain via Wikimedia Commons

The Shipwreck (Claude-Joseph Vernet, 1772)
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Claude-Joseph Vernet (1714–1789), 1772 / Public domain via Wikimedia Commons

Vanitas Still Life with Skull, Lute, and Cards (Pieter Claesz)
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Pieter Claesz (c. 1597/98–1660) / Public domain via Wikimedia Commons

The Choice of Hercules (Annibale Carracci, c. 1596)
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Annibale Carracci (1560–1609), c. 1596 / Museo di Capodimonte, Naples / Public domain via Wikimedia Commons

Scenographia Systematis Mundani Ptolemaici (Andreas Cellarius, Harmonia Macrocosmica, 1660)
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Andreas Cellarius (c. 1596–1665), plate from Harmonia Macrocosmica, Amsterdam, 1660 / Public domain via Wikimedia Commons

Aurora (Guido Reni, 1614)
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Guido Reni (1575–1642), fresco, 1614 / Casino dell'Aurora, Palazzo Pallavicini-Rospigliosi, Rome / Public domain via Wikimedia Commons

Diogenes (Jean-Léon Gérôme, 1860)
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Jean-Léon Gérôme (1824–1904), 1860 / Walters Art Museum, Baltimore (37.131) / Public domain via Wikimedia Commons

Ara Pacis Augustae, processional frieze detail (Rome, 13–9 BC)
CC-BY-SA
Photo by Carole Raddato / Ara Pacis Augustae, Rome, 13–9 BC / CC BY-SA 2.0 via Wikimedia Commons

The Death of Socrates (Jacques-Louis David, 1787)
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Jacques-Louis David (1748–1825), 1787 / Metropolitan Museum of Art, New York (31.45) / CC0

Title page, Marci Antonini Imperatoris de rebus suis (Thomas Gataker, 1697)
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Frontispiece by Gerard de Lairesse for Thomas Gataker's edition of Marcus Aurelius's Meditations, 1697 / Rijksmuseum, Amsterdam (RP-P-1982-1171) / Public domain via Wikimedia Commons

Roman milestone of Tiberius, Nîmes (CIL XI 5605)
CC-BY-SA
Milestone of Emperor Tiberius from Nîmes, France (Corpus Inscriptionum Latinarum XI 5605) / Public domain photograph via Wikimedia Commons