1. Niccolò Machiavelli, in John R. Hale, ed. and trans., The Literary Works of Machiavelli with Selections from the Private Correspondence (New York: Oxford University Press, 1961), 139, cited in Dora Thornton, The Scholar in His Study: Ownership and Experience in Renaissance Italy (New Haven: Yale University Press, 1997), 32.
2. Leon Battista Alberti, Anuli, quoted in Patricia Lee Rubin, Images and Identity in Fifteenth-Century Florence (New Haven: Yale University Press, 2007), 93.
3. Leon Battista Alberti, On Painting, trans. John R. Spencer (New Haven: Yale University Press, 1966), 63.
4. Anthony Grafton, ed., Rome Reborn: The Vatican Library and Renaissance Culture (Washington, D.C.: Library of Congress, in association with Biblioteca apostolica vaticana, Vatican City, 1993), 53.
5. Giovanni Orlandi, Aldo Manuzio editore: dediche, prefazioni, note ai testi (Milan: Il polifilo, 1975), 2: 233.