SETI in the March, 1983 issue of Discover Magazine
“It is, I suppose, perfectly possible that extraterrestrial intelligence is rare or even absent,†Carl Sagan wrote in his article, titled “We Are Nothing Special.†“But the history of science urges on us great caution in accepting such a contention: we have a deep vested interest in this ultimate anthropocentrism - the notion that we are alone in the cosmos.â€
http://www.discover.com/issues/sep-05/rd/lookback-in-discover/