Note 100 — Chapter XXVI · PHÆDRUS — SYMPOSION.
Reading edition
Plato, Phædrus, p. 261 A.
That truth upon matters small and contemptible deserves to be sought out and proved as much as upon matters great and sublime, is a doctrine affirmed in the Sophistês, Politikus, Parmenidês: Sophist. pp. 218 E, 227 A; Politik. 266 D; Parmenid. 130 E.