“I believe in —  I am proud to belong to —  the United States.”

2014, Young Southeast Asian Leaders Initiative Town Hall Speech (November 2014)
Context: I’m very proud of the United States. I believe that the United States is a force for good around the world. But I wouldn’t be a good President if I don’t listen to criticism of our policies and stay open to what other countries say about us. Sometimes I think those criticisms are unfair. Sometimes I think people like to complain about the United States because we’re doing too much. Sometimes they complain because they’re doing too little. Every problem around the world, why isn’t the United States doing something about it. Sometimes there are countries that don’t take responsibility for themselves and they want us to fix it. And then when we do try to fix it, they say why are you meddling in our affairs. Yes, it’s kind of frustrating sometimes. But the fact that we are getting these criticisms means that we’re constantly thinking, okay, is this how we should apply this policy? Are we doing the right thing when we provide aid to a country, but the country is still ruled by a small elite and maybe it’s not getting down to the people? Are we doing the right thing when we engage in training a military to become more professional, but maybe the military is still engaging in repressive activity? If we’re not open to those criticisms, then we won’t get better, we won’t improve.

From an interview with Sam Wollaston in The Guardian, 25th March 2009.

Lee Kuan Yew, in a wry aside to critics who have accused him of governing Singapore like a nanny state, From Third World to First, The Singapore Story: 1965-2000, Lee Kuan Yew. 2000)
2000s

A statement he is reported to have made several times to others after the secession of South Carolina, or as early as after the election of Abraham Lincoln (1860), as quoted in Lincoln's War: The Untold Story of America's Greatest President as Commander in Chief (2004) by Geoffrey Perret.

Speech at 2016 Republican National Convention http://www.people.com/article/melania-trump-michelle-obama-similar-convention-speeches (July 18, 2016)

Meeting with Japanese reporters at the U.S. embassy, November 11, 2009 http://www.businessinsider.com/geithner-we-care-about-a-strong-dollar-really-2009-11

Quoted in Chicano Power: The Emergence of Mexican America by Tony Castro, ISBN 0841503214.

Presidential declaration speech, Ted Cruz declaration speech: Full transcript http://www.independent.co.uk/news/world/americas/ted-cruz-declaration-speech-full-transcript-10128614.html, Independant.co.uk (March 23, 2015)
2010s

Quoted in "Energy Technology XI: Applications and Economics" - Page 988 - Richard F. Hill - Science - 1975