Opportunity and suitability, cause of, put them beyond change, vi. 8.18 (39-[806]).

Opposition, ii. 3.4 (52-[1168]).

Opposition among inanimate beings (animals and matter), iii. 2.4 (47-[1048]),

Optimism right, v. 5.2 (32-[579]).

Order, cosmic, is natural, iv. 3.9 (27-[404]).

Order exists only in begotten, not in seminal reason, iv. 4.16 (28-[461]).

Order in the hierarchy of nature, ours cannot be questioned, iii. 3.3 (48-[1079]).

Order is anteriority in the intelligible, iv. 4.1 (28-[443]).

Order, priority of, implies conception of time, iv. 4.16 (28-[461]).

Organ, the universe, every being is, iv. 4.45 (28-[510]).