“So, it is true that one’s homeland is entirely human, emotional and that it is the root of action, of authority, of responsibility from which one can build Europe. What elements? Well, [nation] States, because only States are valid, are legitimate, in this respect, in addition they are capable of… As I have already said and I repeat, that at the present time, there cannot be any other Europe than that of the States, apart of course from myths, fictions, parades. From this solidarity depends all hope of uniting Europe in the political field and in the field of defense, as in the economic field. From this solidarity depends, therefore, the destiny of Europe as a whole, from the Atlantic to the Urals.”

1860s, Proclamation of Amnesty and Reconstruction (1863)

The Daily Telegraph (9 June 1975), from Enoch Powell on 1992 (Anaya, 1989), p. 144
1970s

Mr Ivanov said Macedonia was simply “paying for the mistakes of the EU”, quoted on Independent, Refugee crisis: Macedonia tells Germany they've 'completely failed' http://www.independent.co.uk/news/world/europe/macedonia-tells-germany-youve-completely-failed-a6927576.html, March 12, 2016.

Speech in the Senate, February 14, 1850, in response to a speech by Senator Henry S. Foote of Mississippi, who had "lectured" Clay on the allegiance which he owed to the South as a senator from a Southern state. From The Life, Correspondence, and Speeches of Henry Clay (Vol. 3); ed. Calvin Colton: A. S. Barnes & Co., 1857.

Source: Lenin and Philosophy and Other Essays (1968), "Ideology and Ideological State Apparatuses", p. 97

Océan - Tas de pierres (1942)

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

Truman Library address (2006)
Context: Governments must be accountable for their actions in the international arena, as well as in the domestic one.
— Today, the actions of one State can often have a decisive effect on the lives of people in other States. So does it not owe some account to those other States and their citizens, as well as to its own? I believe it does.
— As things stand, accountability between States is highly skewed. Poor and weak countries are easily held to account, because they need foreign assistance. But large and powerful States, whose actions have the greatest impact on others, can be constrained only by their own people, working through their domestic institutions.
— That gives the people and institutions of such powerful States a special responsibility to take account of global views and interests, as well as national ones. And today they need to take into account also the views of what, in UN jargon, we call “non-State actors”. I mean commercial corporations, charities and pressure groups, labor unions, philanthropic foundations, universities and think tanks — all the myriad forms in which people come together voluntarily to think about, or try to change, the world.
— None of these should be allowed to substitute itself for the State, or for the democratic process by which citizens choose their Governments and decide policy. But, they all have the capacity to influence political processes, on the international as well as the national level. States that try to ignore this are hiding their heads in the sand.