“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.”
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?
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Ronald Reagan 264
American politician, 40th president of the United States (i… 1911–2004Related quotes

Speech at the Opening of the Bandung Conference

“We want to be a peace-loving element among the nations. We cannot repeat that often enough.”
Speech in Berlin (30 January 1936), quoted in The Times (26 September 1939), p. 9
1930s

2009, Nobel Prize acceptance speech (December 2009)
Context: We can acknowledge that oppression will always be with us, and still strive for justice. We can admit the intractability of deprivation, and still strive for dignity. Clear-eyed, we can understand that there will be war, and still strive for peace. We can do that — for that is the story of human progress; that's the hope of all the world; and at this moment of challenge, that must be our work here on Earth.

"Right of Nations to Self-Determination", (1904), The Lenin Anthology
1910s

Speech delivered at Dhaka on 11th October 1917. Source: Collected Works of Deshbandhu (with Bengali title but text in Bengali and English) edited by Manindra Dutta and Haradhan Dutta, Tuli Kalam, Kolkata. No copyright.
1917

1990s, Inaugural celebration address (1994)
Context: We are both humbled and elevated by the honour and privilege that you, the people of South Africa, have bestowed on us, as the first President of a united, democratic, non-racial and non-sexist government.
We understand it still that there is no easy road to freedom
We know it well that none of us acting alone can achieve success.
We must therefore act together as a united people, for national reconciliation, for nation building, for the birth of a new world.
Let there be justice for all.
Let there be peace for all.

Source: The Tales of Alvin Maker, Red Prophet (1988), Chapter 17.