The quote from Larry McMurtry's "Lonesome Dove" highlights themes of resilience and the harsh realities of life. It suggests that the journey of the blue pigs symbolizes the struggles individuals face, emphasizing that life is often challenging and requires strength to endure. The mention of traveling to Montana just to meet their end underlines the inevitability of fate and the sometimes burdensome nature of existence.

Furthermore, the phrase "Life ain't for sissies" encapsulates the rugged and unforgiving nature of life portrayed in the novel. It reflects the tough decisions and harsh conditions that characters must navigate, emphasizing the need for courage in the face of adversity. This sentiment resonates with readers as a reminder of the strength needed to confront life's challenges and the acceptance of one's destiny.