In Arturo Pérez-Reverte's book "Good Men," the phrase "Some day all this will be burned by the fire of history" reflects a sense of morbid curiosity about the transient nature of life and the inevitability of change. The character expresses a dark pleasure in the idea that everything we know will eventually fade away, yet it serves as a reminder to cherish the present. This attitude invites readers to contemplate both the futility and the richness of existence.

Despite the unsettling notion of historical oblivion, the emphasis on "let's live" encourages embracing the present moment. It suggests that amidst the impermanence, we should seek joy and meaning in our experiences. This juxtaposition of despair and vitality captures the essence of human resilience and the importance of living fully, even when faced with life's uncertainties.