Invariably will you find perseverance exemplified as the radical principle in every truly great character. It facilitates, perfects, and consolidates the execution of the plan conceived, and renders profitable its results when attained. By continuing to advance steadily in the same way, light constantly increases, obstacles disappear, efficient habits are confirmed, experience is acquired, the use of the best means is reduced to easy action, and success becomes more sure.

P. 450. - Dictionary of Burning Words of Brilliant Writers (1895)