“The social sciences are usually concerned with groups of persons rather than individual persons. The behavior of individuals, being free, is unpredictable.”
Source: The Evolution of Civilizations (1961) (Second Edition 1979), Chapter 3, Groups, Societies, and Civilizations, p. 67
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Carroll Quigley 79
American historian 1910–1977Related quotes

Adam Schaff (1967), "Functional Definition, Ideology, and the Problem of the 'fin du siècle' of Ideology." L’Homme et la Société, April-June 1967. pp. 49-61; p. 50
“Correspondingly, the work group became central rather than the individual jobholder.”
The evolution of socio-technical systems, (1981)
Source: Leadership in Administration: A Sociological Interpretation, 1957, p. 17

"Totalitarianism and the Virtue of the Lie", as quoted in Is God Happy? Selected Essays (2013), Basic Books, p. 57
Preface, p. ix
Anarchy, State, and Utopia (1974)
Context: Individuals have rights and there are things no person or group may do to them (without violating their rights). So strong and far-reaching are these rights that they raise the question of what, if anything, the state and its officials may do. How much room do individual rights leave for the state?
Source: Class and society (1959), p. 15; as cited in: Ronald J. Samuda (1998) Psychological Testing of American Minorities: Issues and Consequences. p. 47.

What Really Divides Us https://web.archive.org/web/20120127094927/http://www.ronpaularchive.com/2002/12/what-really-divides-us/ (23 December 2002).
2000s, 2001-2005

As quoted in "Government and Racism" http://archive.lewrockwell.com/paul/paul381.html (18 April 2007).
2000s, 2006-2009