"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."
Quote collection
Carl Sagan quotes (page 20 of 30)
592 quotes — follow a thought to its full quote page.
"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."
"At the extremes it is difficult to distinguish pseudoscience from rigid, doctrinaire religion."
"You're capable of such beautiful dreams and such horrible nightmares."
"The open road still softly calls."
"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.)"
"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."
"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."
"Accommodation to change, the thoughtful pursuit of alternative futures are keys to the survival of civilization and perhaps of the human species."
"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."
"Whatever the reason you're on Mars, I'm glad you're there, and I wish I was with you."
"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?""
"I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue."
"We can't help it. Life looks for life."
"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."
"Our loyalties are to the species and the planet. We speak for Earth."
"The cannabis experience has greatly improved my appreciation for art, a subject which I had never much appreciated before."
"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."
"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."
"There is a lurking fear that some things are not “meant" to be known, that some inquiries are too dangerous for human beings to make."