δικαίως ἀποφαίνεσθαι

From LSJ

εἰ μὴ μάλα γέ τινες ὀλίγοι ὧν ἐγὼ ἐντετύχηκα → apart from a very few whom I've met

Source

Greek > English (Woodhouse)

be satisfactorily accounted for