Reminds me of a quote my high school psych teacher used to always say, "He who angers you controls you." I'm not sure if she said it or if someone else did but I've remembered it all these years and love it.
My philosophy -since the selfishness people are capable of can be overwhelming stick to this and you'll never be at their level...
Met the artist of this print at the Urban Craft Uprising this weekend. She's lovely, and her work is amazing!