Liza is portrayed as a woman with a strong moral compass, particularly when it comes to sin. She views idleness as a transgression, believing that activities like card playing represent this laziness. Liza is wary of any form of enjoyment, whether that be dancing, singing, or laughing, as she feels such pastimes leave individuals vulnerable to temptation and wrongdoing. This strict view on fun highlights her internal struggle between her values and the happiness of those around her.
Samuel, juxtaposed against Liza, embodies a joyful spirit, often indulging in laughter and lightheartedness. However, Liza’s reservations about such joy lead her to believe he is at risk of succumbing to sin. Despite her protective nature towards him, it reveals a conflict between her need to uphold her moral stance and the desire to see her husband enjoy life. Steinbeck captures the tension between Liza's stern beliefs and the joyous nature of Samuel, illustrating a complex dynamic in their relationship.