“It is the threat of the use of force [against Iraq] and our line-up there that is going to put force behind the diplomacy. But if we have to use force, it is because we are America; we are the indispensable nation. We stand tall and we see further than other countries into the future, and we see the danger here to all of us.”

Kalki : or The Future of Civilization (1929)
Context: War with its devastated fields and ruined cities, with its millions of dead and more millions of maimed and wounded, its broken-hearted and defiled women and its starved children bereft of their natural protection, its hate and atmosphere of lies and intrigue, is an outrage on all that is human. So long as this devil-dance does not disgust us, we cannot pretend to be civilized. It is no good preventing cruelty to animals and building hospitals for the sick and poor houses for the destitute so long as we willing to mow down masses of men by machine-guns and poison non-combatants, including the aged and the infirm, women and children — and all for what? For the glory of God and the honour of the nation!
It is quite true that we attempt to regulate war, as we cannot suppress it; but the attempt cannot succeed. For war symbolizes the spirit of strife between two opposing national units which is to be settled by force. When we allow the use of force as the only argument to put down opposition, we cannot rightly discriminate between one kind of force and another. We must put down opposition by mobilizing all the forces at our disposal. There is no real difference between a stick and a sword, or gunpowder and poison gas. So long as it is the recognized method of putting down opposition, every nation will endeavour to make its destructive weapons more and more efficient. War is its only law add the highest virtue is to win, and every nation has to tread this terrific and deadly road. To approve of warfare but criticize its methods, it has been well said is like approving of the wolf eating the lamb but criticizing the table-manners. War is war and not a game of sport to be played according to rules.

1920s, The Democracy of Sports (1924)

Homecoming saga, Earthborn (1995)

2014, Address to European Youth (March 2014)
Context: In the end, the success of our ideals comes down to us -- including the example of our own lives, our own societies. We know that there will always be intolerance. But instead of fearing the immigrant, we can welcome him. We can insist on policies that benefit the many, not just the few; that an age of globalization and dizzying change opens the door of opportunity to the marginalized, and not just a privileged few. Instead of targeting our gay and lesbian brothers and sisters, we can use our laws to protect their rights. Instead of defining ourselves in opposition to others, we can affirm the aspirations that we hold in common. That’s what will make America strong. That’s what will make Europe strong. That’s what makes us who we are. And just as we meet our responsibilities as individuals, we must be prepared to meet them as nations. Because we live in a world in which our ideals are going to be challenged again and again by forces that would drag us back into conflict or corruption. We can’t count on others to rise to meet those tests.

Address to the United States Congress (13 November 1945), quoted in The Times (14 November 1945), p. 4
1940s

Metalogicon (1159) bk. 3, ch. 4. Translation from Henry Osborn Taylor The Mediaeval Mind ([1911] 1919) vol. 2, p. 159; such similes were available to Isaac Newton, when he humbly made use of them in comparing his progress in scientific ideas to those whose ideas he drew upon, in his famous statement to Robert Hooke in a letter of 15 February 1676: If I have seen further it is by standing on the shoulders of Giants.

1920s, Ways to Peace (1926)

A speech on “Air Power” (29 August 1941)

U.S. House of Representatives http://www.house.gov/paul/congrec/congrec2002/cr090402.htm (September 4, 2002).
2000s, 2001-2005