We hear with surprise that the distinguished Stoic philosopher at Athens, Panætius, rejected the Phædon as not being the work of Plato.[42] It appears that he did not believe in the immortality of the soul, and that he profoundly admired Plato; accordingly, he thought it unworthy of so great a philosopher to waste so much logical subtlety, poetical metaphor, and fable, in support of such a conclusion. Probably he was also guided, in part, by one singularity in the Phædon: it is the only dialogue wherein Plato mentions himself in the third person.[43] If Panætius was predisposed, on other grounds, to consider the dialogue as unworthy of Plato, he might be induced to lay stress upon such a singularity, as showing that the author of the dialogue must be some person other than Plato. Panætius evidently took no pains to examine the external attestations of the dialogue, which he would have found to be attested both by Aristotle and by Kallimachus as the work of Plato. Moreover, whatever any one may think of the cogency of the reasoning — the beauty of Platonic handling and expression is manifest throughout the dialogue. This verdict of Panætius is the earliest example handed down to us of a Platonic dialogue disallowed on internal grounds that is, because it appeared to the critic unworthy of Plato: and it is certainly among the most unfortunate examples.
[42] See the Epigram out of the Anthology, and the extract from the Scholia on the Categories of Aristotle, cited by Wyttenbach in his note on the beginning of the Phædon. A more important passage (which he has not cited) from the Scholia on Aristotle, is, that of Asklepius on the Metaphysica, p. 991; Scholia, ed. Brandis, p. 576, a. 38. Ὅτι τοῦ Πλάτωνος ἐστιν ὁ Φαίδων, σαφῶς ὁ Ἀριστοτέλης δηλοῖ — Παναίτιος γὰρ τις ἐτόλμησε νοθεῦσαι τὸν διάλογον. ἐπειδὴ γὰρ ἔλεγεν εἶναι θνητὴν τὴν ψυχήν, ἐβούλετο συγκατασπάσαι τὸν Πλάτωνα· ἐπεὶ οὖν ἐν τῷ Φαίδωνι σαφῶς ἀπαθανατίζει (Plato) τὴν λογικὴν ψυχήν, τούτου χάριν ἐνόθευσε τὸν διάλογον. Wyttenbach vainly endeavours to elude the force of the passages cited by himself, and to make out that the witnesses did not mean to assert that Panætius had declared the Phædon to be spurious. One of the reasons urged by Wyttenbach is — “Nec illud negligendum, quod dicitur ὑπὸ Παναιτίου τινὸς, à Panætio quodam neque per contemptum dici potuisse neque a Syriano neque ab hoc anonymo; quorum neuter eâ fuit doctrinæ inopia, ut Panætii laudes et præstantiam ignoraret.” But in the Scholion of Asklepius on the Metaphysica (which passage was not before Wyttenbach), we find the very same expression Παναίτιός τις, and plainly used per contemptum: for Asklepius probably considered it a manifestation of virtuous feeling to describe, in contemptuous language, a philosopher who did not believe in the immortality of the soul. We have only to read the still harsher and more contemptuous language which he employs towards the Manicheans, in another Scholion, p. 666, b. 5, Brandis.
Favorinus said (Diog. iii. 37) that when Plato read aloud the Phædon, Aristotle was the only person present who remained to the end: all the other hearers went away in the middle. I have no faith in this anecdote: I consider it, like so many others in Diogenes, as a myth: but the invention of it indicates, that there were many persons who had no sympathy with the Phædon, taking at the bottom the same view as Panætius.
[43] Plato, Phædon, p. 59. Plato is named also in the Apology: but this is a report, more or less exact, of the real defence of Sokrates.
Classification of Platonic works by the rhetor Thrasyllus — dramatic — philosophical.
But the most elaborate classification of the Platonic works was that made by Thrasyllus, in the days of Augustus or Tiberius, near to, or shortly after, the Christian era: a rhetor of much reputation, consulted and selected as travelling companion by the Emperor Augustus.[44]
[44] Diog. L. iii. 56; Themistius, Orat. viii. (Πεντετηρικὸς) p. 108 B.
It appears that this classification by Thrasyllus was approved, or jointly constructed, by his contemporary Derkyllides. (Albinus, Εἰσαγωγὴ, c. 4, p. 149, in K. F. Hermann’s Appendix Platonica.)
Thrasyllus adopted two different distributions of the Platonic works: one was dramatic, the other philosophical. The two were founded on perfectly distinct principles, and had no inherent connection with each other; but Thrasyllus combined them together, and noted, in regard to each dialogue, its place in the one classification as well as in the other.