Soon almost every subject they might want to talk about is associated with yet another unpleasant scene and becomes a subject they can’t talk about, so that as time goes by there is less and less they can safely talk about, and eventually little else but the news and what they’re reading, though not all of what they’re reading. They can’t talk about certain members of her family, his working hours, her working hours, rabbits, mice, dogs, certain foods, certain universities, hot weather, hot and cold room temperatures at night and in the day, lights on and lights off in the evening in summer, the piano, music in general, how much money he earns, what she earns, what she spends, etc. But one day, after they have been talking about a forbidden subject, though not the most dangerous of the forbidden subjects, she realizes it may be possible, sometimes, to say something calm and careful about a forbidden subject, so that it may once again become a subject that can be talked about, and then to say something calm and careful about another forbidden subject, so that there will be another subject that can be talked about once again, and that as more subjects can be talked about once again there will be, gradually, more talk between them, and that as there is more talk there will be more trust, and that when there is enough trust, they may dare to approach even the most dangerous of the forbidden subjects.