οὐκ ἔστιν ὅπως οὐ θαυμάζομεν

From LSJ

ἤκουσεν ἐν Ῥώμῃ καὶ ἀρσένων ἑταιρίαν εἶναι → he heard that there was also a fellowship of males in Rome (Severius, commentary on Romans 1:27)

Source

Greek > English (Woodhouse)

we cannot but admire