Note 219 — Chapter II · SCIENCE AND RELIGION

See Bernays, Theophrastos’ Schrift über Frömmigkeit. Porphyry’s tract, Περὶ ἀποχῆς ἐμψύχων, was doubtless saved from the general destruction of his writings by its conformity to the ascetic tendencies of the age. Even St. Jerome made constant use of it in his polemic against Iovianus, though he is careful not to mention Porphyry’s name (Theophr. Schr. n. 2). The tract is addressed to Castricius Firmus, the disciple and friend of Plotinos, who had fallen away from the strict vegetarianism of the Pythagoreans.