“Let us by all means teach black history, African history, women’s history, Hispanic history, Asian history. But let us teach them as history, not as filiopietistic commemoration. The purpose of history is to promote not group self-esteem, but understanding of the world and the past, dispassionate analysis, judgment, and perspective, respect for divergent cultures and traditions, and unflinching protection for those unifying ideas of tolerance, democracy, and human rights that make free historical inquiry possible.”

In the Shadow of History, Chapter: Why should we study History? p. 4
History, What History Tells Us, In the Shadow of History

Remarks by German Chancellor Angela Merkel before a joint session of Congress on November 04, 2009. http://www.spiegel.de/international/europe/0,1518,659196,00.html
Dokumentation: Angela Merkels Rede im US-Kongress im Wortlaut http://www.welt.de/politik/ausland/article5079678/Angela-Merkels-Rede-im-US-Kongress-im-Wortlaut.html
Context: Even after the end of the Cold War we are […] faced with the task of tearing down the walls between different concepts of life, in other words the walls in people's minds that make it difficult time and again to understand one another in this world of ours. This is why the ability to show tolerance is so important. While, for us, our way of life is the best possible way, others do not necessarily feel that way. There are different ways to create peaceful coexistence. Tolerance means showing respect for other people's history, traditions, religion and cultural identity. But let there be no misunderstanding: Tolerance does not mean "anything goes". There must be zero tolerance towards all those who show no respect for the inalienable rights of the individual and who violate human rights.

The Disuniting of America: Reflections on a Multicultural Society (New York: W W Norton, 1993) p. 93

Source: The Outline of History (1920), Ch. 40

Speech to the House of Commons (8 June 1982) http://www.reagan.utexas.edu/archives/speeches/1982/60882a.htm
1980s, First term of office (1981–1985)
Context: From Stettin on the Baltic to Varna on the Black Sea, the regimes planted by totalitarianism have had more than thirty years to establish their legitimacy. But none — not one regime — has yet been able to risk free elections. Regimes planted by bayonets do not take root.... If history teaches anything, it teaches self-delusion in the face of unpleasant facts is folly.... Our military strength is a prerequisite to peace, but let it be clear we maintain this strength in the hope it will never be used, for the ultimate determinant in the struggle that's now going on in the world will not be bombs and rockets but a test of wills and ideas, a trial of spiritual resolve, the values we hold, the beliefs we cherish, the ideals to which we are dedicated.

A Study of American Liberalism and its Relationship to Modern Totalitarian States (1938)
pp. 48-49
Dorothy Thompson’s Political Guide: A Study of American Liberalism and its Relationship to Modern Totalitarian States (1938)