“You've got to lie to stay halfway interested in yourself.”

Though widely quoted from his speech in the House of Commons, (1 November 1976) published in Hansard, House of Commons, 5th series, vol. 918, col. 976.; this is actually a very old paraphrase of a statement of the 19th century minister Charles Spurgeon: "A lie travels round the world while truth is putting on her boots." Even in the paraphrased form Callaghan used, it was in widely familiar, many years prior to his use of it, and is evidenced to have been published in that form at least as early as 1939.
Misattributed

Good Gulf radio show (24 June 1934)
Other

Source: Wise Blood

Johnny Got His Gun (1938)
Context: There's a game out there, and the stakes are high. And the guy who runs it figures the averages all day long and all night long. Once in a while he lets you steal a pot. But if you stay in the game long enough, you've got to lose. And once you've lost there's no way back, no way at all.

"Remember yourself" was a motto of G. I. Gurdjieff, whose ideas were an early influence on Bush.
Song lyrics, Lionheart (1978)

"Me and You".
Volume Two (2010)

Gillard lists the events which followed her loss to Rudd in the June 2013 Labor Party leadership spill
The Killing Season, Episode three: The Long Shadow (2010–13)

Source: Revenge of the Witch