“We want to be a peace-loving element among the nations. We cannot repeat that often enough.”

Address to United Nations General Assembly http://www.reagan.utexas.edu/archives/speeches/1987/092187b.htm (21 September 1987)
1980s, Second term of office (1985–1989)
Context: Cannot swords be turned to plowshares? Can we and all nations not live in peace? In our obsession with antagonisms of the moment, we often forget how much unites all the members of humanity. Perhaps we need some outside, universal threat to make us recognize this common bond. I occasionally think how quickly our differences worldwide would vanish if we were facing an alien threat from outside this world. And yet, I ask you, is not an alien force already among us? What could be more alien to the universal aspirations of our peoples than war and the threat of war?

Cited in: Peter Coad (1992, p. 152)
The Timeless Way of Building (1979)

Address to the United Nations (1964)

Address at the opening of the Exhibit on the World's Religions at Santa Clara University (31 March 2005) http://www.scu.edu/ethics/practicing/focusareas/global_ethics/laughlin-lectures/kung-world-religions.html
Address at the opening of the Exhibit on the World's Religions at Santa Clara University (31 March 2005) note: Elaborations and extensions of this declaration occur in Küng's later writings, including: There will be no peace among the nations without peace among the religions. There will be no peace among the religions without dialogue among the religions. There will be no dialogue among the religions without global ethical standards. There will therefore be no survival of this globe without a global ethic.
Source: Christianity: Essence, History, Future

Robert F. Kennedy, in a speech in the US Senate (9 May 1966)
Misattributed

Speech in the United States Senate (9 May 1966)

1960s, The Quest for Peace and Justice (1964)
Context: We will not build a peaceful world by following a negative path. It is not enough to say "We must not wage war." It is necessary to love peace and sacrifice for it. We must concentrate not merely on the negative expulsion of war, but on the positive affirmation of peace. There is a fascinating little story that is preserved for us in Greek literature about Ulysses and the Sirens. The Sirens had the ability to sing so sweetly that sailors could not resist steering toward their island. Many ships were lured upon the rocks, and men forgot home, duty, and honor as they flung themselves into the sea to be embraced by arms that drew them down to death. Ulysses, determined not to be lured by the Sirens, first decided to tie himself tightly to the mast of his boat, and his crew stuffed their ears with wax. But finally he and his crew learned a better way to save themselves: they took on board the beautiful singer Orpheus whose melodies were sweeter than the music of the Sirens. When Orpheus sang, who bothered to listen to the Sirens? So we must fix our vision not merely on the negative expulsion of war, but upon the positive affirmation of peace. We must see that peace represents a sweeter music, a cosmic melody that is far superior to the discords of war.

Address to the United Nations (1964)