Note 171 — Chapter XXIX · SOPHISTES — POLITIKUS. (continued 2)
Reading edition
See the Republic, v. pp. 476-479, vi. pp. 508-510-511, and especially the memorable simile about the cave and the shadows within it, in Book vii. pp. 518-519, together with the περιαγωγὴ which he there prescribes — ἀπὸ τοῦ γιγνομένου εἰς τὸ ὄν — and the remarks respecting observations in astronomy and acoustics, p. 529.