“I don't want you get an idea I experiment with drugs, cause I don't. I am into full-scale research.”

Bullet in a Bible (2005) (backstage in England).

In an interview in the New York Times (16 December 1957), cited in a footnote on page 32 of "Work, Society, and Culture" by Yves Reni Marie Simon, and also in a footnote (in German) on page 360 of "Vita activa oder Vom taetigen Leben" by Hannah Arend (1981)

Variants:

Basic research is when I'm doing what I don't know I'm doing.

Research is what I'm doing when I don't know what I'm doing.

Basic research is what I am doing when I don't know what I am doing.

De Abaitua interview (1998)

Source: Old Bugs

We are not holding a Goddamned thing. Let the Germans do that. We are advancing constantly and we are not interested in holding onto anything, except the enemy's balls. We are going to twist his balls and kick the living shit out of him all of the time. Our basic plan of operation is to advance and to keep on advancing regardless of whether we have to go over, under, or through the enemy. We are going to go through him like crap through a goose; like shit through a tin horn!
Speech to the Third Army (1944)

Letter to Baader in The element of madness, July 12, 2009, Perlentaucher Medien GmbH, February 22, 2010 http://www.signandsight.com/features/1964.html,

Interview in The Guardian (2011)
Context: I could become a hermit if I'm not careful; I like that. When people on Facebook say stay in touch – I don't want to stay in touch. I don't want anyone to know where I am.

On the controversy over his weight, as quoted in "Ronaldo Traumatized With His Weight" http://www.insideworldsoccer.com/2010/04/ronaldo-traumatized-with-his-weight.html (April 2010), Inside World Soccer

"Still Don't Give A Fuck"
1990s, The Slim Shady LP (1999)