A friend came to see me on one of the evenings of the last week — he thinks it was on Monday, August 3rd. We were standing at a window of my room in the Foreign Office. It was getting dusk, and the lamps were being lit in the space below... My friend recalls that I remarked on this with the words, "The lamps are going out all over Europe: we shall not see them lit again in our life-time."

Vol. 2, ch. 18, p. 20 books.google - Twenty-five Years (1925)