Carl Sagan Quotes about Technology

"Bringing Science Back to Earth". Interview with Anne Kalosh, Hemispheres (the magazine of United Airlines), October 1994.
"Cosmos: A Personal Voyage". TV Series, Episode 13: Who Speaks for Earth?, 1990.
Carl Sagan (2011). “Cosmos”, p.315, Ballantine Books
Carl Sagan (2011). “Demon-Haunted World: Science as a Candle in the Dark”, p.25, Ballantine Books
Carl Sagan (2011). “Cosmos”, p.337, Ballantine Books
Carl Sagan (2012). “Dragons of Eden: Speculations on the Evolution of Human Intelligence”, p.245, Ballantine Books