What Other People Think Of You
What other people think of you is none of your business. I read that quote in a Medium article (I don't think the author is the originator but I could be wrong) back a while and I laughed out loud at how true it is.
I often have to remind myself of that nugget of wisdom. My process of how I react to information is something like "does it affect me in any way? No? Then move along. Yes? Ask again, and if it really does, then consider considering it."