Tape recording (November 18, 1977) to be played in the event of his assassination (the version of recording given to Frank Robinson) as quoted in Randy Shilts "The Mayor of Castro Street: The Life and Times of Harvey Milk" (p. 372), 1982.
Quoted in Battles and Leaders of the Civil War (1887 - 1888). This line is popularly said to have been Sedgwick's last words and to have been cut off in the middle of "distance." In fact, this was Sedgwick's second-to-last sentence and was completed before the bullet hit.