Abstract

In lieu of an abstract, here is a brief excerpt of the content:The Ever-Moving Soul in Plato's PhaedrusDougal BlythThe proof of the immortality of the soul at Phdr. 245c5-246a2 is unique in the dialogue for its apparent philosophical rigour and technical style, and it is peculiar in its rhetorical and mythical context.1 It is introduced as the first stage of Socrates' palinode, exhorting Phaedrus to give himself to a true lover rather than a non-lover. On this basis the philosopher will then describe the course of true love (erōs) as the attempt of an older man to lead the soul of a younger whom he loves, along with his own soul, up and back to the original immortal condition of the "winged" soul which contemplates true being (246a-257b).As the groundwork upon which this vision is built the proof of the immortality of the soul deserves close study, not only of its argument, but also its rhetorical achievement and relation to the subsequent myth. It might be a parody or imitation of a Pythagorean proof, but the definition of soul and the role that plays in the implied theory appear original to Plato.2 Nevertheless, the importation of a fragment of some more extensive physical theory into a speech on love is surprising, and demands explanation.3 My procedure here involves the recovery of significant features [End Page 185] of the theory, firstly by reference to the myth, secondly by comparison with other dialogues containing related concepts and positions, and finally and most importantly by extended analysis of the physical and cosmological postulates of the argument itself.4 It should then emerge from my attention to the stages of its presentation that, as might be expected in its epideictic context, the statement of the proof involves significant rhetorical finesse. It both establishes the credibility of the subsequent myth, and, with its cosmic sweep, prepares the listener for the profundity of the latter. Moreover the proof is written so as itself to provoke that philosophical erōs for understanding which the myth then describes.I. To begin, we need some idea of what soul the proof is concerned with. The three possible meanings of the ambiguous phrase (245a5) are (i) every individual soul, (ii) one comprehensive world soul, or (iii) some common aspect of all living things, which, despite the mortality of psychophysical individuals, would be immortal in itself.5 The plurality of separate individual souls [i.e., sense (i)] is excluded by the requirements of the proof (see below), that "all soul" be one unique source of cosmic motion. No specific doctrine of a world soul [i.e., sense (ii)] is expressly stated in the Phaedrus; I shall in fact argue that the world soul is signified by the gods' chariots in the following myth, but in that case this cannot be equivalent to "all soul," since immortal souls (or fragments of soul as such) are described as entering into human and animal bodies, whereas the gods do not (248c-249d). This seems sufficient grounds to understand "all soul" as (iii)-one common soul in which we all participate insofar as we are alive; thus Plato writes "all soul cares for what is soulless (i.e., body), and travels round the whole world ('all [End Page 186] heaven', ) coming to be in different forms at different times" (246b6-7).Since the identity of the subject concerned in the proof of the immortality of "all soul" receives its only clarification subsequently in the course of the following myth, before turning to a detailed consideration of the argument I shall first survey the implications of the myth for the cosmological status of immortal soul. It is represented here as a chariot rising up to the sphere of the fixed stars, where each lesser soul follows in the train of its appointed god; and by passing beyond the outermost edge of the visible universe, insofar as it is capable, the soul studies the forms beyond, the truly divine, by proximity to which even gods are divine (249c6). Gods are thus, in this dialogue, paradigms of that divine soul which is said to circumnavigate the cosmos in governing it (246b7-c2, e5-6) and soul has its...