“America, the freest nation on Earth, is also the most virtuous nation on Earth. This point seems counter-intuitive, given the amount of conspicuous vulgarity, vice and immorality in America. Some Islamic fundamentalists argue that their regimes are morally superior to the United States because they seek to foster virtue among the citizens. Virtue, these fundamentalists argue, is a higher principle than liberty. Indeed it is. And let us admit that in a free society, freedom will frequently be used badly. Freedom, by definition, includes the freedom to do good or evil, to act nobly or basely. But if freedom brings out the worst in people, it also brings out the best. The millions of Americans who live decent, praiseworthy lives desire our highest admiration because they have opted for the good when the good is not the only available option. Even amid the temptations of a rich and free society, they have remained on the straight path. Their virtue has special luster because it is freely chosen. By contrast, the societies that many Islamic fundamentalists seek would eliminate the possibility of virtue. If the supply of virtue is insufficient in a free society like America, it is almost nonexistent in an unfree society like Iran's. The reason is that coerced virtues are not virtues at all. Consider the woman who is required to wear a veil. There is no modesty in this, because she is being compelled. Compulsion cannot produce virtue, it can only produce the outward semblance of virtue. Thus a free society like America's is not merely more prosperous, more varied, more peaceful, and more tolerant; it is also morally superior to the theocratic and authoritarian regimes that America's enemies advocate.”

U.S. House of Representatives http://www.house.gov/paul/congrec/congrec2002/cr090402.htm (September 4, 2002).
2000s, 2001-2005

Islam: A Short History (2000)
Context: The Western media often give the impression that the embattled and occasionally violent form of religiosity known as "fundamentalism" is a purely Islamic phenomenon. This is not the case. Fundamentalism is a global fact and has surfaced in every major faith in response to the problems of out modernity. There is fundamentalist Judaism, fundamentalist Christianity, fundamentalist Hinduism, fundamentalist Buddhism, fundamentalist Sikhism, and even fundamentalist Confucianism.

1960s, Farewell address (1961)
Context: Throughout America's adventure in free government, our basic purposes have been to keep the peace, to foster progress in human achievement, and to enhance liberty, dignity and integrity among peoples and among nations. To strive for less would be unworthy of a free and religious people. Any failure traceable to arrogance or our lack of comprehension or readiness to sacrifice would inflict upon us grievous hurt, both at home and abroad.

Letter to James Warren (12 February 1779) http://www.gutenberg.org/etext/2094

2016, State of the Union address (January 2016)

Nos vertus ne sont, le plus souvent, que de vices déguisés.
Epigraph. Note: "This epigraph, which is the key to the system of La Rochefoucauld, is found in another form as No. 179 of the Maxims of the first edition, 1665; it is omitted from the second and third, and reappears for the first time in the fourth edition at the head of the Reflections". Aime Martin, editor, Bartlett's Quotations, 1919 edition.
Reflections; or Sentences and Moral Maxims (1665–1678)

Address to the nation on the situation in Southeast Asia (April 30, 1970); in Public Papers of the Presidents of the United States: Richard Nixon, 1970, p. 409
1970s

"Born American, But in the Wrong Place" (2006)