...we begin to understand marriage as the insistently practical union that it is. We begin to understand it, that is, as it is represented in the traditional marriage ceremony, those vows being only a more circumstantial and practical way of saying what the popular songs say dreamily and easily: "I will love you forever"--a statement that, in this world, inescapably leads to practical requirements and consequences because it proposes survival as a goal. Indeed, marriage is a union much more than practical, for it looks both to our survival as a species and to the survival of our definition as human beings--that is, as creatures who make promises and keep them, who care devotedly and faithfully for one another, who care properly for the gifts of life in this world.