“I believe it's yogurt, but I refuse to believe it's not butter.”

Homecoming saga, Earthborn (1995)

Source: Howl's Moving Castle

Interview interview (1995)

Kitchen Confidential (2000)

Cited in: Bill Adler (2001) Funny Ladies: The Best Humor from America's Funniest Women, p. 86

As quoted in Sam Houston (2004), by James Haley, University of Oklahoma Press, pp. 390–91
1860s
Context: Fellow citizens, in the name of your rights and liberties, which I believe have been trampled upon, I refuse to take this oath. In the name of the nationality of Texas, which has been betrayed by the Convention, I refuse to take this oath. In the name of the Constitution of Texas, I refuse to take this oath. In the name of my own conscience and manhood, which this Convention would degrade by dragging me before it, to pander to the malice of my enemies, I refuse to take this oath. I deny the power of this Convention to speak for Texas.... I protest.... against all the acts and doings of this convention and I declare them null and void

Unidentified ‘member’ of MySpace.com circa 2007–08, quoted in Richard Kennedy The Disgrace of MySpace (self-published [Lulu.com] 23 August 2008, ISBN 9781435760042, page 123. This passage and slight variants of it have been widely attributed to Audrey Hepburn long after her death (for example, in Glamour March 2012, page 78); but no evidence of its existence has been found during Hepburn’s lifetime, attributed to Hepburn or anyone else. It has not been found in print before 2008.
Misattributed