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| Desiderio da Settignano Julius Caesar ca. 1455-60 marble relief Musée du Louvre |
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| Bernardino de' Conti Portrait of a Man ca. 1500-1510 oil on panel Gallerie degli Uffizi, Florence |
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| Agnolo di Polo Bust of Young Man (fragment of Adoration of the Magi scene) ca. 1515-20 painted terracotta Ashmolean Museum, Oxford |
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| attributed to Jean II Pénicaud Cleopatra ca. 1540 enamel on copper Musée du Louvre |
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| Titian Portrait of Doge Nicolò Marcello ca. 1542 oil on canvas Pinacoteca Vaticana, Rome |
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| attributed to Baccio Bandinelli Profile Head of a Man ca. 1550 marble relief Clark Art Institute, Williamstown, Massachusetts |
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| Wenceslaus Hollar after Karel Škréta Head of Youth 1635 etching British Museum |
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| Jan van Bronckhorst Portrait of artist Jacob van der Does 1655 drawing British Museum |
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| Nicolas de Plattemontagne Portrait of artist Jean-Baptiste Champaigne with his wife Geneviève 1677 charcoal and colored chalks on paper British Museum |
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| Antonio Perfetti Cameo Portrait of sculptor Antonio Canova ca. 1805-1810 engraving British Museum |
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| Georges Jacquot Une jeune nymphe descendant dans l'eau 1824 marble Musée du Louvre |
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| Arnold Böcklin Portrait of Angela Böcklin 1863 oil on canvas Alte Nationalgalerie, Staatliche Museen zu Berlin |
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| Antonio Salvetti Reading 1894 oil on canvas Museo San Pietro, Colle di Val d'Elsa |
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| Rudolf Eickemeyer Elsie Whelen 1903 platinum print National Museum of American History, Washington DC |
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| Robert Hardmeyer Waschanstalt Zürich AG 1904 lithograph (poster for commercial laundry) Museum of Modern Art, New York |
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| Nickolas Muray Rose Rolanda Covarrubias ca. 1930 gelatin silver print Museum of Modern Art, New York |
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| L.S. Lowry Lady on a Crossing 1964 oil on canvas Milwaukee Art Museum, Wisconsin |
draft passage for the Treatise on Human Nature
"When you pronounce any action or character to be vicious, you mean nothing but that from the particular constitution of your nature you have a feeling or sentiment of blame from the contemplation of it. Vice and virtue, therefore, may be compared to sounds, colours, heat and cold, which, according to modern philosophy, are not qualities in objects but perceptions in the mind. And this discovery in morals, like that other in physics, is to be regarded as a mighty advancement of the speculative sciences: though like that too, it has little or no influence on practice."
– David Hume (ca. 1740)