Abraham Lincoln Quotes about Giving Up

Abraham Lincoln, Don Edward Fehrenbacher (1977). “Abraham Lincoln, a Documentary Portrait Through His Speeches and Writings”, p.263, Stanford University Press
Abraham Lincoln (2008). “Speeches and Letters of Abraham Lincoln(1832-1865) (EasyRead Super Large 20pt Edition)”, p.74, ReadHowYouWant.com
Abraham Lincoln (2008). “The Collected Works of Abraham Lincoln”, p.288, Wildside Press LLC
Abraham Lincoln, Bob Blaisdell (2013). “Abraham Lincoln's Wit & Wisdom”, p.13, Courier Corporation