Final answer:
The excerpts provided do not reveal what Stephen remembers Samantha telling him; the information requested is not present in the given text.
Step-by-step explanation:
The query focuses on what Stephen remembers that Samantha told him. Unfortunately, the provided texts do not reveal any direct conversation between Stephen and a character named Samantha, leading to the conclusion that the specific information requested is not available in the given excerpts. Several instances mention Stephen or thoughts related to him, but none include a character named Samantha or what she might have told him. We can discern from the context that themes such as family relations, racial identity, deception, and social conflict are prevalent in the narratives from which the snippets are taken. Nonetheless, without a direct reference to the dialogue between Stephen and Samantha, the question cannot be definitively answered based on the provided literature excerpts.