Nineteen Eighty-Four.  

"BIG BROTHER IS WATCHING YOU."^1a
"FREEDOM IS SLAVERY."^1b
"TWO AND TWO MAKE FIVE."^1c* ARISTOTLE DESCARTES PASCAL BERKELEY VOLTAIRE JAMES SANTAYANA RUSSELL POPPER DRUCKER PENROSE

"Doublethink lies at the very heart of Ingsoc, since the essential act of the Party is to use conscious deception while retaining the firmness of purpose that goes with complete honesty. . . It need hardly be said that the subtlest practitioners of doublethink are those who invented doublethink and know that it is a vast system of mental cheating."^1d* HEGEL RICOEUR

"ALL ANIMALS ARE EQUAL BUT SOME ANIMALS ARE MORE EQUAL THAN OTHERS."^2b

FBI file regarding George Orwell, available under the Freedom of Information Act (FOIA), January 28, 2000. Electronic Document, 79 pages, in PDF format. Documents available at The FBI Freedom of Information Act Reading Room which is located within the J. Edgar Hoover Building at FBI Headquarters, Washington, D.C., http://foia.fbi.gov/foiaindex/orwell.htm.
 

* Italics in the original.

¹ George Orwell (1903-1950). Nineteen Eighty-Four. Eric Blair, 1949. Estate of the late Sonia Brownwell Orwell, 1987. Note on the Text by Peter Davison, 1989.London, UK: Penguin Group, 1989, 1990. (First published by Martin Secker and Warburg Ltd., 1949.)
^a Big Brother, at 3.
^b Slogans of the Party, at 18.
^c "2+2=5," at 290 and 303.
^d Doublethink and the "secret of rulership," at 223-224.

² George Orwell. Animal Farm: A Fairy Story. Eric Blair, 1945. The Estate of the late Sonia Brownell Orwell, 1987. Introduction by Malcolm Bradbury, 1989. Note on the Text by Peter Davison, 1989. London, UK: Penguin Group, 1989. (First published by Martin Secker and Warburg Ltd., 1945.)
^a Ch. 1, at 5.
^b Ch. 10, at 90.