In "Lord Jim," Joseph Conrad explores the duality of human nature, highlighting the conflict between ambition and morality. He suggests that humanity is often guided by dreams of greatness and power, which can lead to both cruel and devoted actions. This indicates a struggle where the pursuit of ambition can overshadow ethical considerations, driving individuals towards destructive behaviors.

The author questions the essence of truth in this context, pondering whether the quest for truth is meaningful when humanity is so often blinded by its desires. The reflection on mankind's journey emphasizes the complexities of striving for ideals while grappling with the darker aspects of existence, suggesting that our aspirations often come with significant moral consequences.