And yet, even if there is no problem of distance involved, one must make a continuing effort to keep personal relationships warm and close, in the family as well as among friends. Human relationships, like life itself, can never remain static. They grow or they diminish. But, in either case, they change. Our emotional interests, our intellectual pursuits, our personal preoccupations, all change. So do those of our friends. So the relationship that binds us together must change too; it must be flexible enough to meet the alterations of person and circumstance.