“One of the main reasons American liberals adore Europe is that Europe still worships its intellectuals. In America, intellectuals are mostly for entertainment. But across the pond, these folks get to do real damage. Why, just this spring a small Italian village had its barbershop cited by the local magistrate because its shaving brushes did not conform to the standard set by the European Union. I am not making this up.”

Und so wünsche ich mir, dass die Bürgerinnen und Bürger Europas in 50 Jahren sagen werden: Damals, in Berlin, da hat das vereinte Europa die Weichen richtig gestellt. Damals, in Berlin, da hat die Europäische Union den richtigen Weg in eine gute Zukunft eingeschlagen. Sie hat anschließend ihre Grundlagen erneuert, um nach innen, auf diesem alten Kontinent, wie nach außen, in dieser einen großen-kleinen Welt, einen Beitrag zu leisten.
Speech at the 50th anniversary of the signing of the Treaties of Rome on March 25, 2007
2007

Source: The End of the American Era (2002), Chapter four: "The Rise of Europe"

Euro fantasies, 1996

Waldersee to Kaiser Wilhelm II c. 1901, warning him againsgt partitioning China. https://www.marxists.org/history/erol/china/patriotism.pdf

Attributed to Washington in "Farewell to the United States of Europe: long live the EU!" by André Fontaine at Open Democracy (29 November 2001) http://www.opendemocracy.net/democracy-europefuture/article_344.jsp. It appears to have originally circulated in French:
:: Je suis citoyen de la Grande République de l'Humanité. Je vois le genre humain uni comme une grande famille par des liens fraternels. Nous avons jeté une semence de liberté et d'union qui germera peu à peu dans toute la Terre. Un jour, sur le modèle des Etats-Unis d'Amérique, se constitueront les États-Unis d'Europe. Les États-Unis seront le législateur de toutes les nationalités.
: An anonymous blogger in "Did George Washington predict a "United States of Europe"? (30 January 2010) http://racehist.blogspot.com/2010/01/did-george-washington-predict-united.html showed that it derived from Gustave Rodrigues, Le peuple de l'action: essai sur l'idéalisme américain (A. Colin, 1917), p. 207:
:: Washington écrivait à La Fayette qu'il se condérait comme « citoyen de la grande république de l'humanité » et ajoutait : « Je vois le genre humain uni comme une grande famille par des liens fraternels ». Ailleurs il écrivait, prophétiquement: « Nous avons jeté une semence de liberté et d'union qui germera peu à peu dans toute la terre. Un jour, sur le modèle des Etats-Unis d'Amérique, se constitueront les États-Unis d'Europe. »
: A translation by Louise Seymour Houghton ( The People of Action: An Essay on American Idealism (1918) http://books.google.com/books?id=b8Y9AAAAYAAJ) reads:
:: Washington wrote to Lafayette that he considered himself a "citizen of the great republic of humanity," adding: "I see the human race a great family, united by fraternal bonds." Elsewhere he wrote prophetically: "We have sown a seed of liberty and union that will gradually germinate throughout the earth. Some day, on the model of the United States of America, will be constituted the United States of Europe." [pp. 209-210]
: The first two quotations come from a letter to the Marquis de Lafayette of 15 August 1786 (see above) as quoted in Joseph Fabre's Washington, libérateur de l'Amérique: suivi de Washington et la revolution Américaine (Ch. Delagrave, 1886), and the third is also found in that source where, although placed between quotation marks, it is clearly intended as the author's own comments on what "Washington and his friends" were saying to the world by establishing the American Constitution. Gustave Rodrigues mistakenly printed Fabre's words as Washington's alongside some actual observations of his from a letter to Lafayette, and so created the misquotation.
Misattributed

Source: The Tragedy of Great Power Politics (2001), Chapter 7, The Offshore Balancers, p. 252

2010s, Socialism's Legacy (2011)

Part Two: The Lost Music, "The Touchstone" p. 501
The Little Country (1991)