Note 5 — Chapter XV · THEAGES.
Reading edition
Plato, Theagês, 124 A-B. Schleiermacher (Einleit. p. 250) censures the prolixity of the inductive process in this dialogue, and the multitude of examples here accumulated to prove a general proposition obvious enough without proof. Let us grant this to be true; we cannot infer from it that the dialogue is not the work of Plato. By very similar arguments Socher endeavours to show that the Sophistês and the Politikus are not works of Plato, because in both these dialogues logical division and differentiation is accumulated with tiresome prolixity, and applied to most trivial subjects. But Plato himself (in Politikus, pp. 285-286) explains why he does so, and tells us that he wishes to familiarise his readers with logical subdivision and classification as a process. In like manner I maintain that prolixity in the λόγοι ἐπακτικοί is not to be held as proof of spurious authorship, any more than prolixity in the process of logical subdivision and classification.
I noticed the same objection in the case of the First Alkibiadês.