gre ed. Burnet 1903 293cταύτῃ θήσομεν, ὡς οἶμαι, καὶ οὐκ ἄλλῃ, τοῦτον ὅρον ὀρθὸν εἶναι μόνον ἰατρικῆς καὶ ἄλλης ἡστινοσοῦν ἀρχῆς.
eng tr. Jowett 1817-1893And this we lay down to be the only proper test of the art of medicine, or of any other art of command.
http://www2.hf.uio.no/common/apps/permlink/permlink.php?app=polyglotta&context=record&uid=2aaa4d9a-cfdd-11e7-8793-0050569f23b2