If I am offering advice to a guy and he questions the source of my advice and I want to say I got it from someone else:<br/><br/> a) "I am just going by what someone told me."<br/> b) "I am just going off what someone told me."<br/><br/> I made up "going off" from a) and the phrase "reading off a page". Do you think b) might pass muster with native readers/speakers.