περὶ οὐδὲν γὰρ οὕτως ὑπάρχει τῶν ἀνθρωπίνων ἔργων βεβαιότης ὡς περὶ τὰς ἐνεργείας τὰς κατ' ἀρετήν → since none of man's functions possess the quality of permanence so fully as the activities in conformity with virtue
adj.
P. and V. καθαρός, Met., P. and V. καθαρός, ἀκήρατος (rare P.), ἁγνός (rare P.), ἀκέραιος, ἄμεμπτος, V. ἀκραιφνής, ἄθικτος; see pure.
