While we see the Course of the final abolition of human Slavery is onward, & we give it the aid of our prayers & all justifiable means in our power, we must leave the progress as well as the result in his hands who sees the end; who Chooses to work by slow influences; & with whom two thousand years are but as a Single day.

The Story of Robert E. Lee: As Told in His Own Words and Those of His Contemporaries (ed. 1964)