Carl Sagan

“We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. The Demon-Haunted World (1995)”

“Books are the seeds of civilization. Cosmos (1980), Ch. 1”

“We are made of star stuff”

“The absence of evidence is not evidence of absence. Cosmos (1980), Ch. 1”

“For small creatures such as we, the vastness is bearable only through love. Contact (1985), Ch. 1”

“Extraordinary claims require extraordinary evidence. Cosmos (1980), Ch. 1”

“The nitrogen in our DNA, the calcium in our teeth, the iron in our blood were all made in the interiors of collapsing stars. Cosmos (1980), Ch. 1”

“We are a way for the cosmos to know itself. Cosmos (1980), Ch. 1”

“The cosmos is within us. We are made of star-stuff. Cosmos (1980), Ch. 1”

“Somewhere, something incredible is waiting to be known”