Note 15

S. Th., qu. 32, art. 1, ad 2; qu. 27, art. 1 and 3. As is well known, St. Augustine had already likened the relation between the Three Persons, by way of a similitudo, to that between memory, intelligence, and love (De Trinitate, XV, 41-42, reprinted in Patrologia Latina, vol. 42, col. 1088 ff.).