The quote reflects the deep-seated bias that often characterizes conflict. It suggests that people tend to accept and believe the horrors committed by their adversaries while dismissing or rationalizing the wrongdoing of their own side. This selective belief can distort perceptions of morality and truth during wartime, contributing to a cycle of hatred and misunderstanding.

Arturo Pérez-Reverte's novel "Sabotage" delves into these themes, exploring how propaganda and personal narratives shape the way individuals view their enemies. The impact of such distorted beliefs can lead to a lack of accountability and an escalation of violence, as both sides dehumanize each other and justify their actions based on the actions of the opponent.