“This was one of the tasks we set forth at the beginning of this presidential campaign: to continue the long march of those who came before us, a march for a more just, more equal, more free, more caring and more prosperous America. I chose to run for the presidency at this moment in history because I believe deeply that we cannot solve the challenges of our time unless we solve them together — unless we perfect our union by understanding that we may have different stories, but we hold common hopes; that we may not look the same and we may not have come from the same place, but we all want to move in the same direction — towards a better future for of children and our grandchildren.”

2016, Remarks to the People of Cuba (March 2016)
Context: There’s still enormous problems in our society. But democracy is the way that we solve them. That's how we got health care for more of our people. That's how we made enormous gains in women’s rights and gay rights. That's how we address the inequality that concentrates so much wealth at the top of our society. Because workers can organize and ordinary people have a voice, American democracy has given our people the opportunity to pursue their dreams and enjoy a high standard of living.

2014, Remarks to the People of Estonia (September 2014)

2000s, A Challenge to Overcome (November 2007)

2021, January, Presidential Inaugural Address (2021)

Bittersweet, Chapter 2 at p. 36

Life in the Industry: A Musician's Diary

"The War Speeches of William Pitt", Oxford University Press, 1915, p. 16
Speech in the House of Commons, 17 February 1792, introducing the Budget. His prediction was a vain hope.

2000s, God Bless America (2008), Slavery and the American Cause