Final answer:
The question is about a conversation between Homer and Lisa, but due to its ambiguity without context, an accurate answer cannot be provided. It may be part of an English subject discussion involving characterization or thematic elements in literature or media.
Step-by-step explanation:
The question refers to a conversation between Homer and Lisa that urges one to never stop. This could be part of an English curriculum where students are exploring themes, dialogues, and character traits in literature or media. However, the question itself is unclear because it lacks context and could be interpreted in many ways. Without additional information, identifying the exact moment when Homer reminds Lisa never to stop is challenging. Therefore, it is essential to have a clearer context or more information to provide an accurate response. This answer could relate to a broader discussion of characterization and theme in literature, highlighting important life lessons imparted through character interactions.