The quote "No miracle, miracle, but industry, industry!" from Miguel de Cervantes Saavedra's "The Ingenious Gentleman Don Quijote of La Mancha" underscores the importance of hard work and perseverance over reliance on luck or supernatural forces. It emphasizes that success and achievement come from diligent effort rather than waiting for miraculous intervention.

This sentiment reflects the broader themes of the novel, where characters confront the challenges of life through their determination and resourcefulness. Don Quijote's adventures demonstrate that human endeavor and tenacity are essential in overcoming obstacles and pursuing one's dreams, reinforcing the idea that miracles are often the result of industry.