1. but love of friendship has at least three distinguishing features: it is mutual, requited love; it is selective (a person may have many companions, but will probably have only a few friends); and it is built on a common purpose (friends find something that interests both and that separates them from others: "I desire a good for you just as I desire it for myself;Lewis;Companionship is often "the matrix of friendship,1991
2. The Catholic Way of Life and the Manichean Way of Life;References Augustine;De moribus Ecclesiae Catholicae et de Moribus Manichaeorum),2006