Hayek's Journey: The Mind of Friedrich Hayek (2003)
“It is my hypothesis that the fundamental source of conflict in this new world will not be primarily ideological or primarily economic. The great divisions among humankind and the dominating source of conflict will be cultural.”
"The Clash of Civilizations?," in Foreign Affairs (1993)
Context: It is my hypothesis that the fundamental source of conflict in this new world will not be primarily ideological or primarily economic. The great divisions among humankind and the dominating source of conflict will be cultural. Nation-states will remain the most powerful actors in world affairs, but the principal conflicts of global politics will occur between nations and groups of different civilizations. The clash of civilizations will dominate global politics. The fault lines between civilizations will be the battle lines of the future.
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Samuel P. Huntington 36
American political scientist 1927–2008Related quotes
"Paul's assembly in Corinth: an alternative society," in Urban Religion in Corinth (Harvard: 2005), pp. 374-375.

1940s, Science and Religion (1941)
Context: Nobody, certainly, will deny that the idea of the existence of an omnipotent, just, and omnibeneficent personal God is able to accord man solace, help, and guidance; also, by virtue of its simplicity it is accessible to the most undeveloped mind. But, on the other hand, there are decisive weaknesses attached to this idea in itself, which have been painfully felt since the beginning of history. That is, if this being is omnipotent, then every occurrence, including every human action, every human thought, and every human feeling and aspiration is also His work; how is it possible to think of holding men responsible for their deeds and thoughts before such an almighty Being? In giving out punishment and rewards He would to a certain extent be passing judgment on Himself. How can this be combined with the goodness and righteousness ascribed to Him?
The main source of the present-day conflicts between the spheres of religion and of science lies in this concept of a personal God.

Remaking the world, The Speeches of Frank N.D. Buchman, Blandford Presss 1947, revised 1958, p. 150
Quotes on the war of ideas

The Women’s Mufti: Interview with Grand Ayatollah Yousef Saanei http://www.aawsat.net/2007/04/article55263124, Asharq Alawsat, April 2007.
2007

As quoted in Turning Conflict Into Profit : A Roadmap for Resolving Personal and Organizational Disputes (2005) by Larry Axelrod and Rowland Johnson
R. Hartshorne (1935) "Recent Developments in Political Geography" The American Political Science Review Vol. 29 (5), p. 585

“The only conflict that is possible in Soviet culture is the conflict between good and best.”
Quoted in Aly Monroe, "Black Bear"