What was the brother's reaction to Miss Stein's explanations of her words?

The brother's reaction to Miss Stein's explanations of her words demonstrates a desire for deeper understanding. By seeking further explanations, he shows that he did not fully grasp her initial clarifications and is actively looking to comprehend her perspective more thoroughly. This indicates a willingness to engage in dialogue and an awareness that the concepts being discussed might require additional clarification or examples. Such a reaction suggests that the brother values understanding and is not just passively accepting the information provided to him. This choice aligns with the idea that effective communication often necessitates multiple exchanges to ensure clarity and comprehension.