The fossil record implies trial and error, the inability to anticipate the future, features inconsistent with a Great Designer (though not a… — Carl Sagan Copy Share Image
“[...] science carries us towards an understanding of how the world is, rather than how we would wish it to be [...]” — Carl Sagan Copy Share Image
There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science… — Carl Sagan Copy Share Image
“Claims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value the may have in inspiring us or in… — carl sagan Copy Share Image
Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves. — Carl Sagan Copy Share Image
The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together. — Carl Sagan Copy Share Image
How is it that hardly any major religion has looked at science and concluded, “This is better than we thought! The Universe… — Carl Sagan Copy Share Image
“Science is an ongoing process. It never ends. There is no single ultimate truth to be achieved, after which all the scientists… — Carl Sagan Copy Share Image
We are an intelligent species and the use of our intelligence quite properly gives us pleasure. In this respect the brain is… — Carl Sagan Copy Share Image
It's a lazy Saturday afternoon, there's a couple lying naked in bed reading Encyclopediea Brittannica to each other, and arguing about whether… — Carl Sagan Copy Share Image
“When I wake up I go through an abbreviated process of mourning all over again. Plainly, there’s something within me that’s ready… — Carl Sagan Copy Share Image
“The Man in the Moon is in fact a record of ancient catastrophes--most of which took place before humans, before mammals, and… — Carl Sagan Copy Share Image
Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really… — Carl Sagan Copy Share Image
“Science is far from a perfect instrument of knowledge. It's just the best we have. In this respect, as in many others,… — carl sagan Copy Share Image
I'd like the [Cosmos] series to be so visually stimulating that somebody who isn't even interested in the concepts will just watch… — Carl Sagan Copy Share Image
“In its encounter with Nature, science invariably elicits a sense of reverence and awe. The very act of understanding is a celebration… — Carl Sagan Copy Share Image
“A scientific colleague tells me about a recent trip to the New Guinea highlands where she visited a stone age culture hardly… — Carl Sagan Copy Share Image
“A new concept of god: “something not very different from the sum total of the physical laws of the universe; that is,… — Carl Sagan Copy Share Image
“Science is not only compatible with spirituality; it is a profound source of spirituality. When we recognize our place in an immensity… — Carl Sagan Copy Share Image
“Ethnocentrism, xenophobia and nationalism are these days rife in many parts of the world. Government repression of unpopular views is still widespread.… — Carl Sagan Copy Share Image
The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge, and… — Carl Sagan Copy Share Image
One of the reasons for its success is that science has a built-in, error-correcting machinery at its very heart. Some may consider… — Carl Sagan Copy Share Image
“In the 1920s, there was a dinner at which the physicist Robert W. Wood was asked to respond to a toast ...… — Carl Sagan Copy Share Image
The values of science and the values of democracy are concordant, in many cases indistinguishable. Science and democracy began - in their… — Carl Sagan Copy Share Image
The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but… — Carl Sagan Copy Share Image
Chlorine is a deadly poison gas employed on European battlefields in World War I. Sodium is a corrosive metal which burns upon… — Carl Sagan Copy Share Image
“There are many hypotheses in science that are wrong. That's perfectly alright; it's the aperture to finding out what's right. Science is… — Carl Sagan Copy Share Image
“Because science carries us toward an understanding of how the world is, rather than how we would wish it to be, its… — Carl Sagan Copy Share Image
There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across… — Carl Sagan Copy Share Image
Indeed the reasoned criticism of a prevailing belief is a service to the proponents of that belief; if they are incapable of… — Carl Sagan Copy Share Image
“I try not to think with my gut. If I'm serious about understanding the world, thinking with anything besides my brain, as… — Carl Sagan Copy Share Image
At the heart of science is an essential balance between two seemingly contradictory attitudes-an openness to new ideas, no matter how bizarre… — Carl Sagan Copy Share Image
Science ... looks skeptically at all claims to knowledge, old and new. It teaches not blind obedience to those in authority but… — Carl Sagan Copy Share Image
“If we offer too much silent assent about mysticism and superstition - even when it seems to be doing a little good… — Carl Sagan Copy Share Image
“It was difficult to hold Broca's brain without wondering whether in some sense Broca was still in there—his wit, his skeptical mien,… — Carl Sagan Copy Share Image
A proclivity for science is embedded deeply within us, in all times, places, and cultures. It has been the means for our… — Carl Sagan Copy Share Image
“Except for hydrogen, all the atoms that make each of us up—the iron in our blood, the calcium in our bones, the… — Carl Sagan Copy Share Image
“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is… — Carl Sagan Copy Share Image
Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague,… — Carl Sagan Copy Share Image
Religions are tough. Either they make no contentions which are subject to disproof or they quickly redesign doctrine after disproof. ... near… — Carl Sagan Copy Share Image
It is sometimes said that scientists are unromantic, that their passion to figure out robs the world of beauty and mystery. But is it… — Carl Sagan Copy Share
The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from… — Carl Sagan Copy Share
The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge; it has no… — Carl Sagan Copy Share
“Telepathy’ literally means to feel at a distance, just as ‘telephone’ is to hear at a distance and ‘television’ is to see at a… — Carl Sagan Copy Share
“On the scale of worlds—to say nothing of stars or galaxies—humans are inconsequential, a thin film of life on an obscure and solitary lump… — Carl Sagan Copy Share
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies,… — Carl Sagan Copy Share
In our time, we have sifted the sands of Mars, we have established a presence there, we have fulfilled a century of dreams! — Carl Sagan Copy Share
“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion,… — Carl Sagan Copy Share
“Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insight and knowledge, painfully… — Carl Sagan Copy Share
We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make… — Carl Sagan Copy Share
A tiny blue dot set in a sunbeam. Here it is. That's where we live. That's home. We humans are one species and this… — Carl Sagan Copy Share
Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no. — Carl Sagan Copy Share
Humans — who enslave, castrate, experiment on, and fillet other animals — have had an understandable penchant for pretending animals do not feel pain.… — Carl Sagan Copy Share