What's clever here isn't the surface exhortation to work hard—it's the recognition that goodness requires *vigilance*, not inspiration. Marley cuts through the motivational noise by acknowledging that you won't always feel like doing right; the opposition certainly doesn't wait for your enthusiasm to return. A parent protecting a child's education in an underfunded school system knows this bone-deep truth: the forces working against you don't pause for your exhaustion. The quote's real power lies in reframing persistence not as heroic ambition, but as basic resistance.