Abstract

Eusebius of Cesarea, in his Praeparatio Evangelica, quotes a large piece of Plotinus’ writing to which Porphyry, in his edition of the Enneads, gave the title “On the Immortality of Soul”. Surprisingly, the piece quoted by Eusebius is absent from the Porphyrian edition. Some reasons for this absence have been adduced: some scholars think that the text quoted by Eusebius might be a trace of the edition of Plotinus’s writings made by Eustochius; others think that it might come from the copies Amelius carried to Apameia. This paper will try to show that the opinion that the text quoted by Eusebius come from an edition other than that of Porphyry is hardly defendable, and that the absence of such piece from Porphyry’s edition can be explained by an accident on the direct tradition of the Enneads.