“United States can't impose peace. We can encourage the development of a state…. We can facilitate that. But we can't force people to make hard decisions. They're gonna have to do that themselves…. Gotta ask yourselves, why don't they want there to be a democracy. The answer is, because it doesn't fit in with their ideological vision.”

Interview in Shanghai, as quoted in China Daily (17 November 2009)
2009, Town Hall meeting in Shanghai (November 2009)

Speech in Saarbrücken (9 October 1938), quoted in The Times (26 September 1939), p. 10
1930s

To Jinping Xi (2011-2012), as quoted in "Born Red: How Xi Jinping, an unremarkable provincial administrator, became China’s most authoritarian leader since Mao." http://www.newyorker.com/magazine/2015/04/06/born-red (6 April 2015), by Evan Osnos, The New Yorker.
2010s

Source: Life, the Truth, and Being Free (2010), p. 152

Regarding U.S. president-elect Donald J. Trump's intention to reintroduce the usage of torture by U.S. authorities, as quoted in "John McCain attacks Donald Trump's torture stance" https://www.facebook.com/Channel4News/videos/10154266695396939/ (21 November 2016), Channel 4 News
2010s, 2016

Source: Life of Pi

2011, Address on interventions in Libya (March 2011)
Context: When one of our airmen parachuted to the ground, in a country whose leader has so often demonized the United States — in a region that has such a difficult history with our country — this American did not find enemies. Instead, he was met by people who embraced him. One young Libyan who came to his aid said, “We are your friends. We are so grateful to those men who are protecting the skies.”
This voice is just one of many in a region where a new generation is refusing to be denied their rights and opportunities any longer. 
Yes, this change will make the world more complicated for a time. Progress will be uneven, and change will come differently to different countries. There are places, like Egypt, where this change will inspire us and raise our hopes. And then there will be places, like Iran, where change is fiercely suppressed. The dark forces of civil conflict and sectarian war will have to be averted, and difficult political and economic concerns will have to be addressed. 
The United States will not be able to dictate the pace and scope of this change. Only the people of the region can do that. But we can make a difference.

Source: Ten Things We Did

1920s, Nationalism and Americanism (1920)
Context: The misfortune is not alone that it rends the concord of nations. The greater pity is that it rends the concord of our citizenship at home. It's folly to think of blending Greek and Bulgar, Italian and Slovak, or making any of them rejoicingly American, when the land of adoption sits in judgement on the land from which he came. We need to be rescued from divisionary and fruitless pursuit of peace through super government. I do not want Americans of foreign birth making their party alignments on what we mean to do for some nation in the old world. We want them to be Republican because of what we mean to do for the United States of America. Our call is for unison, not rivaling sympathies. Our need is concord, not the antipathies of long inheritance.