it is incumbent on
From LSJ
Ἡ γὰρ σιωπὴ μαρτυρεῖ τὸ μὴ θέλειν → Hominem non velle significat silentium → Das Schweigen zeugt davon, dass der, der schweigt, nicht will
English > Greek (Woodhouse Extra)
⇢ Look up "it is incumbent on" on Perseus Dictionaries | Perseus KWIC | Perseus Corpora | Wiktionary | Wikipedia | Google | LSJ full text search