“What are ten, twenty, or thirty millions when the British Empire is at stake? This is an artillery war. We must have every gun we can lay hands upon.”

Johnny Got His Gun (1938)
Context: Put the guns into our hands and we will use them. Give us the slogans and we will turn them into realities. Sing the battle hymns and we will take them up where you left off. Not one, not ten, not ten thousand, not a million, not ten millions, not a hundred millions but a billion, two billions of us all — the people of the world. We will have the slogans and we will have the hymns and we will have the guns and we will use them and we will live. Make no mistake of it, we will live. We will be alive and we will walk and talk and eat and sing and laugh and feel and love and bear our children in tranquillity, in security, in decency, in peace. You plan the wars, you masters of men — plan the wars and point the way and we will point the gun.

Letter of resignation from the Socialist Party (September 1917) http://www.spartacus.schoolnet.co.uk/USAsocialismP.htm
Context: I have lived in Germany and know its language and literature, and the spirit and ideals of its rulers. Having given many years to a study of American capitalism, I am not blind to the defects of my own country; but, in spite of these defects, I assert that the difference between the ruling class of Germany and that of America is the difference between the seventeenth century and the twentieth.
No question can be settled by force, my pacifist friends all say. And this in a country in which a civil war was fought and the question of slavery and secession settled! I can speak with especial certainty of this question, because all my ancestors were Southerners and fought on the rebel side; I myself am living testimony to the fact that force can and does settle questions — when it is used with intelligence.
In the same way I say if Germany be allowed to win this war — then we in America shall have to drop every other activity and devote the next twenty or thirty years to preparing for a last-ditch defence of the democratic principle.

"America the Beautiful: The Humanist in the Bathtub", p. 13
On the Contrary: Articles of Belief 1946–1961 (1961)

Attributed to Madison by Frederick Nymeyer in Progressive Calvinism: Neighborly Love and Ricardo's Law of Association, January 1958, p. 31. The source is given there as the 1958 calendar of Spiritual Motivation. It subsequently appeared in Rousas John Rushdoony, The Institutes of Biblical Law (1973), p. 541; Jerry Falwell, Listen America! (1980), p. 51; David Barton, The Myth of Separation Between Church and State (1989); and William J. Federer, America's God and Country Encyclopedia of Quotations (1994) p. 411. David Barton has since declared it "unconfirmed" after Madison scholars reported that this statement appears nowhere in the writings or recorded utterances of James Madison. http://www.members.tripod.com/candst/boston2.htm It appears to be an expansion and corruption of Madison's reference (Federalist Papers XXXIX) to "that honourable determination which animates every votary of freedom, to rest all our political experiments on the capacity of mankind for self government."
Misattributed

Hull Daily Mail, 2 March, 1936.

Broadcast from 10 Downing Street, London (24 May 1927), quoted in Our Inheritance (London: Hodder and Stoughton, 1938), p. 63.
1927

Speech to the Imperial Conference of 1921, quoted in Correlli Barnett, The Collapse of British Power (Eyre Methuen, 1972), p. 177

Les silences du colonel Bramble (The Silence of Colonel Bramble)

Broadcast (27 September 1938), quoted in The Times (28 September 1938), p. 10
Prime Minister