θαυμάζω δὲ τῶν . . . ἐχόντων, ὅπως οὐ . . . λέγουσιν: lit. ‘but I am astonished in those who hold this opinion how it is that they do not abuse wealth’, &c., we should say, ‘I am astonished that those who hold this opinion do not abuse wealth,’ &c. θαυμάζειν, when followed by a personal object, can take (1) acc. of person, (2) gen. of person and acc. of thing, (3) gen. of person and a dependent clause, as here.
