“Love ceases to be a demon only when he ceases to be a god.”

"The Great Explosion" in the posthumous publication The Beginning and the End (1973)
Context: He is no God of love, no justice of a little city like
Dante's Florence, no anthropoid God
Making commandments: this is the God who does not
care and will never cease. Look at the seas there
Flashing against this rock in the darkness — look at the
tide-stream stars — and the fall of nations — and dawn
Wandering with wet white feet down the Carmel Valley
to meet the sea. These are real and we see their beauty.
The great explosion is probably only a metaphor — I know
not — of faceless violence, the root of all things.

As quoted in The Bulletin of the Atomic Scientists Vol. 37 (1981); also in Boston Globe obituary of George F. Kennan by Mark Feeney (18 March 2005) D23. http://www.boston.com/news/globe/obituaries/articles/2005/03/18/george_kennan_dies_at_101_devised_cold_war_policy Cited in James Carroll, House of War, Boston & New York: Houghton Mifflin Co., (2006), chapter 7, note 140, p. 581.
Context: For the love of God, for the love of your children and of the civilization to which you belong, cease this madness. You are mortal men. You are capable of error. You have no right to hold in your hands — there is no one wise enough and strong enough to hold in his hands — destructive power sufficient to put an end to civilized life on a great portion of our planet.

Sermon (1899)

Source: Four Quartets

Source: One Minute Nonsense (1992), p. 91

Against the Galileans (c. 361) as translated in The Works of the Emperor Julian, http://books.google.com/books?id=ZGliAAAAMAAJ&q=%22But+why+do+you+not+cease+to+call+Mary+the+mother+of+God%22&dq=%22But+why+do+you+not+cease+to+call+Mary+the+mother+of+God%22&lr=&pgis=1 edited by Wilmer Cave Wright, London, W. Heinemann; New York, The Macmillan co., (1913 - 1923), volume 3, p. 399, ISBN 0674990145 ISBN 9780674990142 .
General sources

Sec. 285
The Gay Science (1882)

Sec. 48
The Antichrist (1888)