“Learning to ignore things is one of the great paths to inner peace.” ~Robert J. Sawyer Years ago, an old friend had a humorous expression he’d repeat at exactly the right moments: “What you don’t know, you don’t need to know.” These days I find myself remembering that phrase more often. In a recent class, for instance, we discussed how some social media users reveal unattractive aspects of themselves in their posts — usually without realizing how silly, self-absorbed, or unhinged they might appear. Before social media, we had fewer opportunities to witness this type of behavior so immediately in our relationships. Today, oversharing is the norm. It’s one of…