In the quote by Cormac McCarthy, the author emphasizes the timeless and enduring nature of war. He suggests that regardless of human perception or opinion on war, it remains a constant presence throughout history. Just as stones have existed long before humanity, war has been an integral part of life that predates mankind, suggesting its inevitable role in human affairs.

Eric Blehm's book, "The Only Thing Worth Dying For," explores how a group of Green Berets reshaped their mission in Afghanistan, embracing the inherent complexities and realities of conflict. The quote captures the essence of this theme, reflecting on the deep-rooted existence of war and its significance in shaping human experiences and decisions.