Lecture II

Yesterday I said that once there were Nominalists, persons who maintained that general concepts had no reality, but were merely names. These Nominalists had opponents who were called Realists (the word had a different meaning then). The Realists maintained that general concepts are not mere words, but refer to quite definite realities. In the Middle Ages the question of Realism versus Nominalism was always a burning one, especially for theology, a sphere of thought with which present-day thinkers trouble themselves very little. For in the time when the question of Nominalism versus Realism arose (from the eleventh to the thirteenth centuries) there was something that belonged to the most important confessions of faith, the question about the three “Divine Persons”—Father, Son and Holy Ghost—who form One Divine Being, but are still Three real Persons. The Nominalists maintained that these three Divine Persons existed only individually, the “Father” for Himself, the “Son” for Himself, and the “Holy Ghost” for Himself; and if one spoke of a “Collective God” Who comprised these Three, that was only a name for the Three. Thus Nominalism did away with the unity of the Trinity. In opposition to the Realists, the Nominalists not only explained away the unity, but even regarded it as heretical to declare, as the Realists did, that the Three Persons formed not merely an imaginary unity, but an actual one.