St. Augustine, De genesi ad litteram, XII, 16 (PL 34:467); XII, 18 (PL 34:469).
St. Gregory, Dialogorum libri quattuor, IV, 26 (PL 77:357).
Ibid. (PL 77:360).
Ibid.
Avicenna, De anima, IV, 4 (20v).
Ibid.
Glossa ordinaria, super Isa. 38:1 (IV:68r).
Aristotle, Ethica Nicomachea, VIII, 12 (1162a 16).
St. Augustine, De libero arbitrio, II, 19 (PL 32:1267-68).
Boethius, De duabus naturis, I (PL 64:1341).
Q. 12, a. 1, reply.
Glossa ordinaria, super 2 Pet. 1:19 (VI:224v).
Plato, Phaedo, 79C; Republic, 508C.
St. Augustine, De genesi ad litteram, XII, 12 (PL 34:464).
St. Thomas himself says this later: S.T., II-II, 172, 1.
St. Augustine, De genesi ad litteram, XII, 12 (PL 34:464).
Cassiodorus, Expos. in psalt., super prolog. (PL 70:12). This definition is given above, q. 12, a. 1, n. 3, and q. 12, a. 2, n. 1.
Aristotle, De somno et vigilia, III (488a 28); I (454b 10).
Aristotle, De Caelo et Mundo, III, 7 (306a 16).
Aristotle, Ethica Nicomachea, VI, 8 (1142a 25 ff.).
Ibid.
St. Augustine, De genesi ad litteram, XII, 13 (PL 34:464).
St. Augustine, De Trinitate, III, 8 (PL 42:875).
See n. 10 (above).
St. John Damascene, De fide orthodoxa, II, 27 (PG 94:962).