Summary
This quote suggests that one should not dwell on or give too much importance to the negative experiences or hardships they've faced (symbolized by "injuries"). Instead, focus on and cherish the positive aspects or gains in life (symbolized by "benefits"). It encourages resilience and emphasizes the idea of moving forward, leaving behind the negative emotions or setbacks and embracing the positive outcomes or achievements. By writing injuries in dust, it implies letting go and not allowing them to define one's present or future, while writing benefits in marble signifies their solid and lasting significance.