“At the risk of quoting Mephistopheles I repeat: Welcome to hell. A hell erected and maintained by human-governments, and blessed by black robed judges. A hell that allows you to see your loved ones, but not to touch them. A hell situated in America's boondocks, hundreds of miles away from most families. A white, rural hell, where most of the captives are black and urban. It is an American way of death.”

Noir comme le diable, chaud comme l'enfer, pur comme un ange, doux comme l'amour.
frequently misattributed to Talleyrand, no primary source exists, its not his style of speech, and he famously drank tea not coffee.
Misattributed

1970s, Tape transcripts (1972)
Source: Foreign Relations of the United States, 1969-1976 Volume E-5, Part 1, Documents on Sub-Saharan Africa, 1969-1972, Document 258 Conversation Between President Nixon and the President's Assistant for National Security Affairs (Kissinger), Camp David, September 24, 1972, 11:37-11:52 a.m http://history.state.gov/historicaldocuments/frus1969-76ve05p1/d258

Source: From Hell

Source: Island

Mephistopheles, Act II, scene i, line 118
Doctor Faustus (c. 1603)
Source: Dr. Faustus

Interview in the New York Post in October 2000.
Notes: Although Barkley popularised the phrase, it was likely first used several months earlier http://www.snopes.com/quotes/chrisrock.asp by Chris Rock.

Source: I Never Promised You a Rose Garden

God Knows (1984)

Al-Jazeera interview, (21 October 2001), as reported in "Bin Laden's sole post-September 11 TV interview aired" CNN (31 January 2002) http://articles.cnn.com/2002-01-31/us/gen.binladen.interview_1_al-jazeera-qatar-based-network-bin-laden?_s=PM:US.
2000s, 2002