Intuitionally, the soul can reason, iv. 3.18 (27-[417]).
Intuition's act is true conception, i. 1.9 (53-[1202]).
Involuntariness to blame spontaneity, iii. 2.10 (47-[1060]).
Irascible part of earth, iv. 4.28 (28-[481]).
Irrational claims of astrologers, iii. 1.6 (3-[95]).
Isolated, pure soul would remain, iv. 4.23 (28-[473]).
James-Lange theory of emotions refuted, i. 1.5 (53-[1196]).
James-Lange theory taught, iv. 4.28 (28-[480], [481]).
Jar, residence or location of generation is matter, ii. 4.1 (12-[197]); iii. 6.14 (26-[376]); iv. 3.20 (27-[420]).
Jealousy does not exist in divine nature, iv. 8.6 (6-[129]).