Adam Przeworski and Michael Wallerstein, The American Political Science Review (Jun., 1982)
“Though the war ended forever the possibility of disunion, there still remain problems between State and Federal authority. There are divisions of interest, perhaps more apparent than real, among geographical sections or social groups. The seaboard thinks it has interests in maritime transportation and overseas commerce which differ greatly from those of the interior, which is peculiarly dependent upon railroads. Difference in climate and physical conditions throughout so great a territory tend to varied social habits and modes of living which react upon the economic and political attitudes. The industrial development of some sections contrasts with the agricultural character of others. Obviously, these differences give rise to many problems in government, which must always be recognized. But it is hardly conceivable that a really menacing contest between the sovereignty of the States and of the Union could ever again arise.”
1920s, The Reign of Law (1925)
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Calvin Coolidge 412
American politician, 30th president of the United States (i… 1872–1933Related quotes

Speech in Cheshire (23 September 1889) on the London dock strike, quoted in The Times (24 September 1889), p. 10.
1880s

Source: Validity of the single processor approach... (1967), p. 483

Quote, Professor P.C. Mahalanobis and the Development of Population Statistics in lndia
Cited in: Lyndall Fownes Urwick, Edward Franz Leopold Brech (1961), The Making of Scientific Management: The Hawthorne investigations https://archive.org/stream/makingofscientif032926mbp#page/n191/mode/2up. p. 166-167
Management and the worker, 1939

Introduction, p. 6
1910s, Proposed Roads To Freedom (1918)

Left-Wing Communism, An Infantile Disorder (April - May 1920) http://www.marxists.org/archive/lenin/works/1920/lwc/ch09.htm.
1920s

"An interview with Nicholas Wade" http://www.americanscientist.org/bookshelf/pub/nicholas-wade, American Scientist (April 2006).

Letter to Kingsley Martin on the Spanish Civil War (9 August 1937), quoted in Kingsley Martin, Editor: A Second Volume of Autobiography, 1931–45 (1968), p. 257
1930s