“We know the battle ahead will be long, but always remember that no matter what obstacles stand in our way, nothing can stand in the way of the power of millions of voices calling for change.”

Part IV, Chapter V (p. 386)
The Privilege of the Sword (2006)

Source: The Power of Positive Thinking

1910s, Address to the Knights of Columbus (1915)
Context: All of us, no matter from what land our parents came, no matter in what way we may severally worship our Creator, must stand shoulder to shoulder in a united America for the elimination of race and religious prejudice. We must stand for a reign of equal justice to both big and small. We must insist on the maintenance of the American standard of living. We must stand for an adequate national control which shall secure a better training of our young men in time of peace, both for the work of peace and for the work of war. We must direct every national resource, material and spiritual, to the task not of shirking difficulties, but of training our people to overcome difficulties. Our aim must be, not to make life easy and soft, not to soften soul and body, but to fit us in virile fashion to do a great work for all mankind. This great work can only be done by a mighty democracy, with these qualities of soul, guided by those qualities of mind, which will both make it refuse to do injustice to any other nation, and also enable it to hold its own against aggression by any other nation. In our relations with the outside world, we must abhor wrongdoing, and disdain to commit it, and we must no less disdain the baseness of spirit which lamely submits to wrongdoing. Finally and most important of all, we must strive for the establishment within our own borders of that stern and lofty standard of personal and public neutrality which shall guarantee to each man his rights, and which shall insist in return upon the full performance by each man of his duties both to his neighbor and to the great nation whose flag must symbolize in the future as it has symbolized in the past the highest hopes of all mankind.

"The Action Americans Need" in The Washington Post (5 February 2009), p. A17 http://www.washingtonpost.com/wp-dyn/content/article/2009/02/04/AR2009020403174.html
2009

1990s, Our March to Freedom is Irreversible (1990)
Context: Our march to freedom is irreversible. We must not allow fear to stand in our way. Universal suffrage on a common voters' roll in a united, democratic and non-racial South Africa is the only way to peace and racial harmony.

Source: Wherever You Go, There You Are: Mindfulness Meditation in Everyday Life

A Senate in the Gun Lobby’s Grip, The New York Times, 2013-04-18, April 17, 2013 http://www.nytimes.com/2013/04/18/opinion/a-senate-in-the-gun-lobbys-grip.html?hp&_r=0,