Carl Sagan

Astronomer, Astrophysicist

Carl Sagan was an influential astronomer and science communicator, known for his work 'Cosmos' and advocacy for scientific literacy.

Born
November 9, 1934
Died
December 20, 1996
Quotes
592
Rank
#212

Quote collection

Carl Sagan quotes (page 20 of 30)

592 quotes — follow a thought to its full quote page.

Carl Sagan Astronomer, Astrophysicist
Popular

"Religions are tough. Either they make no contentions which are subject to disproof or they quickly redesign doctrine after disproof. ... near the core of the religious experience is something remarkably resistant to rational inquiry."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"We've begun at last to wonder about our origins, star stuff contemplating the stars, organized collections of ten billion billion billion atoms contemplating the evolution of matter, tracing that long path by which it arrived at consciousness here on the planet Earth and perhaps throughout the cosmos. Our obligation to survive and flourish is owed not just to ourselves but also to that cosmos, ancient and vast, from which we spring."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"At the extremes it is difficult to distinguish pseudoscience from rigid, doctrinaire religion."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"You're capable of such beautiful dreams and such horrible nightmares."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"One of the great commandments of science is, 'Mistrust arguments from authority'. (Scientists, being primates, and thus given to dominance hierarchies, of course do not always follow this commandment.)"

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"Modern Darwinism makes it abundantly clear that many less ruthless traits, some not always admired by robber barons and Fuhrers - altruism, general intelligence, compassion - may be the key to survival."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"Both the Freudian and the Platonic metaphors emphasize the considerable independence of and tension among the constituent parts of the psyche, a point that characterizes the human condition."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"Accommodation to change, the thoughtful pursuit of alternative futures are keys to the survival of civilization and perhaps of the human species."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"The hole in the ozone layer is a kind of skywriting. At first it seemed to spell out our continuing complacency before a witch's brew of deadly perils. But perhaps it really tells of a newfound talent to work together to protect the global environment."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"Whatever the reason you're on Mars, I'm glad you're there, and I wish I was with you."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"After I give lectures-on almost any subject-I am often asked, "Do you believe in UFOs?" I'm always struck by how the question is phrased, the suggestion that this is a matter of belief and not evidence. I'm almost never asked, "How good is the evidence that UFOs are alien spaceships?""

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"The wind whips through the canyons of the American Southwest, and there is no one to hear it but us - a reminder of the 40,000 generations of thinking men and women who preceded us, about whom we know almost nothing, upon whom our civilization is based."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"Our loyalties are to the species and the planet. We speak for Earth."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"The cannabis experience has greatly improved my appreciation for art, a subject which I had never much appreciated before."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"Eratosthenes was the director of the great library of Alexandria, the Centre of science and learning in the ancient world. Aristotle had argued that humanity was divided into Greeks and everybody else, whom he called barbarians and that the Greeks should keep themselves racially pure. He thought it was fitting for the Greeks to enslave other peoples. But Erathosthenes criticized Aristotle for his blind chauvinism, he believed there was good and bad in every nation."

Read quote 6 likes
Carl Sagan Astronomer, Astrophysicist
Popular

"We are at a crossroads in human history. Never before has there been a moment so simultaneously perilous and promising. We are the first species to have taken evolution into our own hands."

Read quote 6 likes