It is the eternal struggle between these two principles - right and wrong. They are the two principles that have stood face to face from the beginning of time and will ever continue to struggle. It is the same spirit that says, "You work and toil and earn bread, and I'll eat it."
Abraham Lincoln, Stephen Arnold Douglas (1860). “Political Debates Between Hon. Abraham Lincoln and Hon. Stephen A. Douglas, in the Celebrated Campaign of 1858 in Illinois: Including the Preceding Speeches of Each at Chicago, Springfield, Etc., Also the Two Great Speeches of Mr. Lincoln in Ohio, in 1859, as Carefully Prepared by the Reporter of Each Party and Published at the Times of Their Delivery”, p.234