“Now I can rejoice that I knew you, rather than mourn because I lost you.”

Letter to the Soldiers of Coroticus (c.450?)

Source: Kilroy Was Here (1996), p. 145

La sombra del viento (The Shadow of the Wind) (2001)

Lews Therin Telamon
(15 October 1993)

Source: The Notebook

Letter to his children (9 January 1836)

Letter to Dionigi di Borgo San Sepolcro (26 April 1336), as translated by James Harvey Robinson (1898)
Context: I rejoiced in my progress, mourned my weaknesses, and commiserated the universal instability of human conduct. I had well-nigh forgotten where I was and our object in coming; but at last I dismissed my anxieties, which were better suited to other surroundings, and resolved to look about me and see what we had come to see. The sinking sun and the lengthening shadows of the mountain were already warning us that the time was near at hand when we must go. As if suddenly wakened from sleep, I turned about and gazed toward the west. I was unable to discern the summits of the Pyrenees, which form the barrier between France and Spain; not because of any intervening obstacle that I know of but owing simply to the insufficiency of our mortal vision.

Repentance before forgiveness is a provision of the Christian system, and on that condition alone will the Republicans grant his forgiveness.
Regarding his debate with Judge S. A. Douglas, in his Springfield address (17 July 1858), published in The Life, Speeches, and Public Services of Abraham Lincoln: Together with a Sketch of the Life of Hannibal Hamlin: Republican candidates for the offices of President and Vice-President of the United States (1860), p. 50
Lincoln was alluding to the words of Jesus in Luke 15:7 http://www.biblegateway.com/verse/en/Luke%2015%3A7
1850s

As quoted in the Introduction of Conjectures and Refutations: The Growth of Scientific Knowledge (1963) by Karl Popper