“this time has finished me.”

Source: a little time before his death, as quoted by A. J. Q. Alkemade, in [Biografisch Woordenboek van Nederland, 1982, http://www.inghist.nl/Onderzoek/Projecten/BWN/lemmata/bwn5/burgers]

Speech at the National Press Club (2004)
Context: The war in Iraq was misconceived from start to finish — if it has a finish. It is a war of choice, not of necessity, as President Bush claims. It goes without saying that Saddam was a tyrant, and it is good to be rid of him. But in invading Iraq as we did, without a second UN resolution, we violated international law. By mistreating and even torturing prisoners, we violated the Geneva conventions. President Bush has boasted that we do not need a permission slip from the international community, but our disregard for international law has endangered our security, particularly the security of our troops.

Variant: Come to finish me off, Sweetheart?
Source: The Hunger Games

Progress update on A Dance with Dragons via his website (2008)

as quoted in Georges Braque: A Life (2005), p. 191 https://books.google.com/books?id=G2aWVKnJWaYC&pg=PA191
posthumous quotes

Source: The Uses of Literature

"A Poet of the Actual", p. 265
Forewords and Afterwords (1973)
Context: A craftsman knows in advance what the finished result will be, while the artist knows only what it will be when he has finished it. But it is unbecoming in an artist to talk about inspiration; that is the reader's business.

Source: Enchanted

Lonely on the Mountain (1980); later quoted in A Trail of Memories : The Quotations Of Louis L'Amour (1988) by Angelique L'Amour