The quote "This slavery breeds ugly passions in man" from Herman Melville's "Benito Cereno" captures the corrosive effects of slavery on human nature. It suggests that the institution of slavery not only dehumanizes the enslaved but also distorts the moral character of those who perpetuate it. The struggles between enslaved individuals and their captors highlight how the dynamics of power and oppression lead to moral decay and violence within society.

Moreover, the narrative of "Benito Cereno" illustrates the complexity of these relationships, showcasing how slavery invokes not just physical control but also psychological turmoil. Melville’s exploration of these themes reveals the inherent contradictions and destructive consequences of a society built on subjugation, shedding light on the darker aspects of human behavior that arise in such oppressive environments.