ἐπὶ τῷ μὴ κοινωνικῶς χρῆσθαι τοῖς εὐτυχήμασι → for not having used their success in a spirit of partnership
P. and V. καλῶς.
elegantly: Ar. and P. κομψῶς.
gracefully: P. χαριέντως.
extremely: P. and V. σφόδρα.