"Brother, Can You Spare a Dime?" (1931), performed as part of the play New Americana (1932) - Charlie Palloy version http://www.youtube.com/watch?v=YsJGagKWrds - Bing Crosby version http://www.youtube.com/watch?v=eih67rlGNhU - Tom Waits version http://www.youtube.com/watch?v=CVE72Ae82Tw
“Robots of the world, you are ordered to exterminate the human race. Do not spare the men. Do not spare the women. Preserve only the factories, railroads, machines, mines, and raw materials. Destroy everything else. Then return to work. Work must not cease.”
R.U.R. (1920)
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Karel Čapek 51
Czech writer 1890–1938Related quotes

1963, Address at the Free University of Berlin
Context: As I said this morning, I am not impressed by the opportunities open to popular fronts throughout the world. I do not believe that any democrat can successfully ride that tiger. But I do believe in the necessity of great powers working together to preserve the human race, or otherwise we can be destroyed.

Source: A Thousand & One Epigrams: Selected from the Writings of Elbert Hubbard (1911), p. 151

Art Nonsense and Other Essays (1929), published by Cassell; quoted in Eric Gill: Man of Flesh and Spirit by Malcolm Yorke, published by Tauris Parke ISBN 1-86064-584-4, p. 49

The Beast of Property (1884)

“If women are expected to do the same work as men, we must teach them the same things.”
If women are to have the same duties as men, they must have the same nurture and education. — Plato, The Republic, Book V, trans. Benjamin Jowett, third edition, Oxford University Press, 1892 http://oll.libertyfund.org/Home3/HTML.php?recordID=0345#hd_lf131.3.head.017
Misattributed
Variant: So if we are going to use men and women for the same purposes, they must be taught the same things. The Republic, trans. Desmond Lee [Penguin Classics, 2003, ISBN 0-140-449140-0], p. 161
Variant: Then if we are to use the women for the same things as the men, we must teach them the same things. The Republic, trans. W. H. D. Rouse [Signet Classic, 1999, ISBN 0-451-52745-3], p. 249

“How much good it would do if one could exterminate the human race.”
A characteristic saying of Russell, reported by Aldous Huxley in a letter to Lady Ottoline Morrell dated 8 October 1917, as quoted in Bibliography of Bertrand Russell (Routledge, 2013)
1910s