Note 206 — Chapter V · DIONYSIUS OF HALICARNASSUS, PLUTARCH, LUCIAN, LONGINUS.
Reading edition
This is fairly close, I think, but the two first lines, at any rate, are too perfect not to be quoted in their own tongue—
Λουκιανὸς τάδ´ ἔγραφε, παλαιά τε μωρά τε εἰδῶς·
μωρὰ γὰρ ἀνθρώποις καὶ τὰ δοκοῦντα σοφά,
lines which grave themselves on the memory at twenty, and at fifty are only graven deeper.