In John Steinbeck's "The Grapes of Wrath," the protagonist grapples with the complexities of morality. The quote emphasizes that actions are simply part of the human experience, without inherent labels of sin or virtue. This perspective suggests that people should focus on their behaviors and their impact on others rather than getting caught up in moral judgments. It reflects a sense of pragmatism and acceptance of human nature.

By asserting that there is "just stuff people do," Steinbeck encourages readers to recognize the shades of gray in human actions. It invites a more compassionate understanding of individuals, urging them to see beyond rigid moral frameworks. This philosophy aligns with the broader narrative of the book, which explores the struggles and resilience of those facing hardship, reinforcing that humanity is defined by its actions rather than its moral standings.