Ask at the forum if you have an Ancient or Modern Greek query!
Βιοῦν ἀλύπως θνητὸν ὄντ' οὐ ῥᾴδιον → Mortalis ullus vix sit exsors tristium → Schwer ist's für Sterbliche zu leben ohne Leid
piously: P. and V. εὐσεβῶς.
trustworthily: P. πιστῶς.
exactly: P. and V. ἀκριβῶς.