Note 40 — Chapter VIII · PLATONIC COMPOSITIONS GENERALLY.
Reading edition
Plato (Epist. ii. 314 A) remarks this expressly: also in the Phædrus, 275 E, 276 A.
Ἄθρει δὴ περισκοπῶν, μή τις τῶν ἀμυήτων ἐπακούσῃ is the language of the Platonic Sokrates as a speaker in the Theætêtus (155 E).