“I showered the slang, simple as ABC's / Skip over the D's and rock the microphone with ease”

Speech to national conference http://www.politico.com/politico44/2012/06/biden-a-gaffe-is-when-you-tell-the-truth-126866.html of the National Association of Black Journalists, Washington, D.C. (June 20, 2012)
2010s

Letter (1817-02-20) on Mrs. Deedes having an eighteenth child [Letters of Jane Austen -- Brabourne Edition]
Letters

( « L'argot est né de la haine, il n'existe plus» Arts, 6. February 1957. in À l’agité du bocal et autres textes, (op. cit.) p. 55.

At a Republican primary debate in Nashua, New Hampshire (23 February 1980). The moderator had ordered the soundman to turn off Reagan's microphone, as Reagan was about to explain that as his campaign was paying for the debate which had originally been arranged by the Nashua Telegraph and that he had invited Bob Dole, Howard Baker, John B. Anderson, and Phil Crane, to be in it as well.
Video footage http://www.youtube.com/watch?v=OO2_49TycdE
1980s

Geek Love (1989)

Repeated at the end of most songs
Lyrics

Inscription: 12 September, 1821, written on the back of 'Hampstead Heath, Sun setting over Harrow,' his sketch in oil on paper; as quoted in Leslie Parris and Ian Fleming-Williams, Constable (Tate Gallery Publications, London. 1993), p. 221
1820s

Source: Equal Rites

Attributed without citation at John Cale - Quotes, xs4all.nl, 16 November 2012 http://werksman.home.xs4all.nl/cale/quotes/index.html,