Carl Sagan
Astronomer, Astrophysicist
"In the deepest sense the search for extraterrestrial intelligence is a search for ourselves."
Extraterrestrial quotes
Extraterrestrial
6 quotes on this topic — from poets, philosophers, and thinkers across history.
Explore further
Topics related to Extraterrestrial
Browse quotes that often appear alongside extraterrestrial — connected by shared ideas and recurring themes.