E.g., Abelard, Intro. ad theol., III, 5 (PL 178:1102); Peter Lombard, Sentent., I, 41, 3 (QR I:258); Nominalists, according to St. Thomas, S.T., I, 14, 15 ad 3; William of Auxerre, cf. Chenu, "Pour l'histoire du traité de la foi," Mélanges thomiste, Le Saulchoir, Kain, 1923, pp. 131-32; St. Bonaventure, St. Albert the Great, and Peter of Tarentaise, cf. Chenu, ibid., p. 136.
E.g., Peter of Poitiers, Sentent., III, 21 (PL 211:1090); Robert of Melun, cf. Chenu, Mélanges thomiste, p. 129; Philip the Chancellor, cf. editors' scholion St. Bonaventure, In Sent., III, d. 23, a. 1, q. 2 (QR III:514); Richard Fishacre, Hugh of Cher, Philip of Greve, cf. Chenu, Mélanges thomiste, p. 125; Alexander of Hales, Summa Theol., III, n. 689 (QR IV:1095-96).
Aristotle, De anima, III, 6 (430a 30).