(good things that we have in life are on temporary loan, at best, and can be taken away from us in an instant. The borderline between good fortune and disaster, between plenitude and paucity, between the warm hearth of love and the cold chamber of loneliness, was a narrow one. We could cross over from one to the other at any moment, as when we stumbled or fell, or simply walked over to the other side because we were paying insufficient attention to where we were.)