The quote "I can't use hope against swords" from James Clavell's novel Shōgun illustrates the theme of the futility of relying on hope in the face of tangible danger. In a world where conflict and violence are prevalent, mere optimism is insufficient to protect oneself or achieve one's goals. This highlights a stark reality where action and preparation are necessary to combat threats effectively.

This perspective reflects the broader narrative of Shōgun, where characters navigate complex political landscapes and the harsh realities of power struggles. The struggle between hope and the stark realities of life underscores the importance of taking decisive actions rather than passively waiting for circumstances to improve.