“I am complete but I'm not finished.”

Source: Arrive at Easterwine (1971), Ch. 6
Context: Gaetan had always had a terrible finality about him. Was this his great sin — that he was already completed? I will intercede for him tonight in my own not entirely mechanical way. To be completed is to be finished in so many ways! May that twinkling man Gaetan be undone a little and saved.

Remark to Nikita Khrushchev and Anastas Mikoyan as quoted in "Khrushchev: Notes from a Forbidden Land", http://www.time.com/time/magazine/article/0,9171,904531-4,00.html Time, 30 November 1970, citing the publication of an installment of Khrushchev's reminiscences in Life that week.
Contemporary witnesses

Light (1919), Ch. XV - An Apparition
Context: Hidden behind the horizons, living men unite with machines and fall furiously on space. They do not see their shots. They do not know what they are doing. "You shall not know; you shall not know."
But since the cannonade is returning, they will be fighting here again. All these battles spring from themselves and necessitate each other to infinity! One single battle is not enough, it is not complete, there is no satisfaction. Nothing is finished, nothing is ever finished. Ah, it is only men who die! No one understands the greatness of things, and I know well that I do not understand all the horror in which I am.

My Life with Martin Luther King Jr., Revised Edition (1969/1993)

while visiting http://www.newspress.com/Top/Article/article.jsp?Section=ARCHIVES&ID=564506446079852571&ARCHIVES=true her son's cross at the Arlington West memorial in Santa Barbara, California, on Mother's Day, May 7, 2004
2004

translation from original Dutch, Fons Heijnsbroek, 2018
version in original Dutch / citaat van Jacob Maris, in het Nederlands: Daarentegen wordt mij verweten dat mijn schilderijen niet af zijn, hoe ik mijn lucht ook doorwerkt heb. Nu, 'af' in de gewone beteekenis van het woord is mijn werk zeker niet. Door in dien zin het af te maken, zou ik er het leven uithalen.
in Jacob Maris (1837-1899), M. van Heteren and others; as cited in 'Ik denk in mijn materie', in exhibition catalog of Teylers Museum / Museum Jan Cunen), Zwolle 2003, p. 76

Claude Monet, 1893; as quoted in: David W. Galenson (2009), Painting outside the Lines, p. 49
1890 - 1900