Rhet gre 1366a10-12(τῷ γὰρ ποιόν τινα φαίνεσθαι τὸν λέγοντα (11) πιστεύομεν, τοῦτο δ’ ἐστὶν ἂν ἀγαθὸς φαίνηται ἢ εὔνους ἢ (12) ἄμφω),
Rhys Roberts 1924 engit helps a speaker to convince us, if we believe that he has certain qualities himself, namely, goodness, or goodwill towards us, or both together.
http://www2.hf.uio.no/common/apps/permlink/permlink.php?app=polyglotta&context=record&uid=c9db68ed-1d51-11e7-ba66-0050569f23b2
