17. MONACHUS. According to Gennadius of Marseilles, Macarius, a Roman monk, wrote Liber adversus Mathematicos, or as it is described by Rufinus, Opuscula adversus Fatum et Matliesin, now lost. He lived about the end of the fourth century, and was the intimate friend of Rufinus, who inscribed to him his Latin version of the Περὶ ἀρχῶν of Origen, and his (Gennadius, De Viris Illustr. c. 28; Fabric. Biblioth. Graec. vol. viii. p. 372; Cave, Hist. Litt. ad ann. 401.)