[192] [cap.47] Since, then, this is the state of affairs with respect to these matters, it is worth while to appreciate correctly the simplicity, or rashness, or impudence of those who pretend to be able with ease to form an opinion, so as to assent to or deny what is stated with respect to anything whatever. For if the simple faculties are wanting, but the mingled powers and those which are formed by contributions from many sources are within sight, and if it is impossible for those which are invisible to be seen, and if we are unable to comprehend separately the character of all the component parts which are united to make up each faculty, then what remains except that we must think it necessary to suspend our judgment?