letters of Gregory’s brother St. Basil (“the Great”) of Caesarea. Most of Apolinarius’s writings have not survived, and most of those that have did so because they were falsely attributed, presumably by the Apollinarians themselves, to “orthodox” writers.2 We also have fragments of some other works; in some cases, including (thanks mostly to Gregory) the Apodeixis, these are quite extensive. All the surviving dogmatic works and the fragments were assembled by Hans Lietzmann in 1904, in his seminal