Someone told me my presentation fell flat, and instead of asking whether they were right, my first thought was "well, of course they'd say that." I spent the rest of the day building a case against the person instead of looking at the point. It might have been completely true, but I threw it out because I didn't rate who it came from.
More people experience this than they realize.
You judge criticism by who said it instead of whether it's true.
If this sounds familiar, the Library can help you find the bigger picture.