In "The Year of the Flood," Margaret Atwood explores the theme of the liver, often symbolizing excess and indulgence. The quote "The liver is evil and must be punished" reflects a broader commentary on human nature and the consequences of our appetites. It suggests a moral perspective where the liver represents not just a physical organ but also the figurative idea of succumbing to desires that can lead to chaos and destruction.

This line encapsulates the tension between humanity's lust for life and the inevitable need for discipline. Atwood uses this symbolism to delve into the complexities of survival, morality, and the environmental impact of human actions. The punishment of the liver is a metaphor for the self-regulation necessary to navigate a world rife with temptation, urging a reconsideration of how we interact with our basic urges and the repercussions they hold for society.