For more than a month he dropped by her apartment two or three times a week, staying no more than two hours at any one time; he was fearful that she would become annoyed at his continued reappearances, so he was careful to come only when he was sure that he could be genuinely helpful to her work. With a kind of grim amusement he realized that he was preparing for his visits to her with the same diligence that he prepared for lectures; and he told himself that this would be enough, that he would be contented only to see her and talk to her for as long as she might endure his presence.

