In Joseph Conrad's novel "The Nigger of the Narcissus," the quote "The man who can't do most things and won't do the rest" emphasizes the theme of human potential and the struggle for self-determination. It reflects the internal conflict within individuals who may feel powerless or unmotivated, showing a contrast between ability and action.

This quote serves as a critique of complacency and passivity, suggesting that true growth comes from grasping opportunities even in the face of limitations. It highlights the dangers of inaction and the importance of resilience in overcoming challenges, urging readers to consider their personal agency.