ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → life is not worth living if you do not have at least one friend
πρότιμος, ἐρίτιμος, βαρύτιμος, πολυτελής, πολύτιμος, ἀπόθετος, ἰσάργυρος, σφραγίς