Courtesy is the idea “that no one give any kind of preference to himself” (C. S. Lewis, British scholar and author)
Does the proliferation of “selfies” on social media suggest something about personal image and self-interest? We even see people “photo-bombing” others’ pictures—that is, inserting themselves where someone is taking a picture, so they are in it, too. Courtesy seems to be a lost practice today. As Lewis suggests, we need to think of others before ourselves.
In humility value others above yourselves, not looking to your own interests but each of you to the interests of the others (Philippians 2:3-4).