1. See Alberti, On Painting, p. 81ff. At issue too are colors, light, shadows.
2. Kepler, cited by H. F. Cohen, Quantifying Music, p. 17.
3. Kepler, cited by Wihelm Dilthey, Weltanschauung und Analyse des Menschen seit Renaissance und Reformation, p. 258. The translation is mine.
4. The arithmetical “now” of daily life is no longer the privileged datum of ordinary experience from which the “real,” “eternity,” the nunc stans, is extrapolated.
5. Alberti, p. 83; the emphasis is mine. See above, pp. 60f.; and Ernst Cassirer, The Individual and the Cosmos in Renaissance Philosophy, p. 163.