“Consider a world in which cause and effect are erratic. Sometimes the first precedes the second, sometimes the second the first.... Each act is an island in time, to be judged on its own. It is a world of impulse. It is a world of sincerity. It is a world in which every word spoken speaks just to that moment, every glance given has only one meaning, each touch has no past or future, each kiss becomes a kiss of immediacy.”