“Those who continue to fight for a hateful cause will find they are increasingly alone. For we will not succumb to threats, and we will demonstrate that the future belongs to those who build — not those who destroy.”

Speech to United Nations General Assembly, , quoted in
2012
Context: The future must not belong to those who target Coptic Christians in Egypt — it must be claimed by those in Tahrir Square who chanted "Muslims, Christians, we are one." The future must not belong to those who bully women — it must be shaped by girls who go to school, and those who stand for a world where our daughters can live their dreams just like our sons. The future must not belong to those corrupt few who steal a country's resources — it must be won by the students and entrepreneurs; workers and business owners who seek a broader prosperity for all people. Those are the men and women that America stands with; theirs is the vision we will support. The future must not belong to those who slander the prophet of Islam. Yet to be credible, those who condemn that slander must also condemn the hate we see when the image of Jesus Christ is desecrated, churches are destroyed, or the Holocaust is denied. Let us condemn incitement against Sufi Muslims, and Shiite pilgrims. It is time to heed the words of Gandhi: "Intolerance is itself a form of violence and an obstacle to the growth of a true democratic spirit." Together, we must work towards a world where we are strengthened by our differences, and not defined by them. That is what America embodies, and that is the vision we will support.

"Letter to a Cuban Farmer" (1893)

Speech at Civic Auditorium, Seattle, Washington (6 September 1960)
1960

Ibid., p. 248
The Book of Disquiet
Original: E seja o nosso desprezo para os que trabalham e lutam e o nosso ódio para os que esperam e confiam.

Race to Extinction
Focus Fourteen

Often attributed to Eleanor Roosevelt without an original source in her writings, for example in the introduction to It Seems to Me : Selected Letters of Eleanor Roosevelt (2001) by Leonard C. Schlup and Donald W. Whisenhunt, p. 2 http://books.google.com/books?id=UeFWjTMcLZYC&lpg=PP1&pg=PA2#v=onepage&q&f=false. But archivists have not been able to find the quote in any of her writings, see the comment from Ralph Keyes in The Quote Verifier above.
Disputed

"Forlesen", Orbit 14 (1974), ed. Damon Knight, Reprinted in Gene Wolfe, Gene Wolfe's Book of Days (1981), Reprinted in Gene Wolfe, Castle of Days (1992), Reprinted in Gene Wolfe, The Best of Gene Wolfe (2009)
Fiction