Beware of thinking that a wise man (as evidenced by achievement, not attested to by claim) is wrong; he is probably right. If you cannot see how he is right, then you are still probably wrong. I like to determine an estimate of the other party’s experience-based wisdom as a whole so that I can apply it as a weighted factor in favor of a particular piece of advice. Often this makes the difference. It is easier to discern the particular within the context of the whole.