Τὰ πάντα ῥεῖ καὶ οὐδὲν μένει → Everything flows and nothing stands still
uncorrupted: P. ἀδιάφθορος, ἀδιάφθαρτος.
pure: P. and V. καθαρός, ἀκέραιος, ἀκήρατος (rare P.); see pure.
