It is in loving (or not loving) that we are (or are not) human. It is in heeding the call to love – in making life-affirming connections – that we become human. . . . . Loving is not merely one thing among others that we are called to do – an extraordinary achievement, a heroic gesture that completes ordinary acts and raises them to a higher level. Love is not an additive, a spiritual supplement reserved for saints. . . . Loving is of the essence of being human, the connective tissue of reality, the oxygen of life.