I think the health of our civilization, the depth of our awareness about the underpinnings of our culture, and our concern for… — Carl Sagan Copy Share Image
I think if we ever reach the point where we think we thoroughly understand who we are and where we came from,… — Carl Sagan Copy Share Image
If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in… — Carl Sagan Copy Share Image
The dangers of not thinking clearly are much greater now than ever before. It's not that there's something new in our way… — Carl Sagan Copy Share Image
At a few hundred kilometers altitude, the Earth fills half your sky, and the band of blue that stretches from Mindanao to… — Carl Sagan Copy Share Image
Science is a way of thinking much more than it is a body of knowledge. Its goal is to find out how… — Carl Sagan Copy Share Image
You mean am I for it or against it? You think this is a key question I'm going to be asked on… — Carl Sagan Copy Share Image
We are the product of 4.5 billion years of fortuitous, slow biological evolution. There is no reason to think that the evolutionary… — 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
Science is more than a body of knowledge. It's a way of thinking: a way of skeptically interrogating the universe. — 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
There is every reason to think that in the coming years Mars and its mysteries will become increasingly familiar to the inhabitants… — Carl Sagan Copy Share Image
If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in… — Carl Sagan Copy Share Image
The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those… — Carl Sagan Copy Share Image
I think the discomfort that some people feel in going to the monkey cages at the zoo is a warning sign. — Carl Sagan Copy Share Image
Science is much more than a body of knowledge. It is a way of thinking. This is central to its success. Science… — Carl Sagan Copy Share Image
There are many other (besides testosterone) behaviour-eliciting hormones fundamental for humen well-being, including estrogen and progesterone in females. The fact that complex… — Carl Sagan Copy Share Image
“Think of the rivers of blood spilled by all those generals and emperors so that in glory and triumph they could become… — Carl Sagan Copy Share Image
He sought a way to preserve the past. John Hershel was one of the founders of a new form of time travel....… — 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
That we can now think of no mechanism for astrology is relevant but unconvincing. No mechanism was known, for example, for continental… — Carl Sagan Copy Share Image
The impediment to scientific thinking is not, I think, the difficulty of the subject. Complex intellectual feats have been mainstays even of… — Carl Sagan Copy Share Image
For myself, I like a universe that, includes much that is unknown and, at the same time, much that is knowable. A… — Carl Sagan Copy Share Image
We are rare and precious because we are alive, because we can think as well as we can. We are privileged to… — Carl Sagan Copy Share Image
By exploring other worlds we safeguard this one. By itself, I think this fact more than justifies the money our species has… — Carl Sagan Copy Share Image
There are in fact 100 billion galaxies, each of which contain something like a 100 billion stars. Think of how many stars,… — Carl Sagan Copy Share Image
As agonizing a disease as cancer is, I do not think it can be said that our civilization is threatened by it.… — Carl Sagan Copy Share Image
These are all cases of proved or presumptive baloney. A deception arises, sometimes innocently but collaboratively, sometimes with cynical premeditation. Usually the… — Carl Sagan Copy Share Image
A millennium before Europeans were willing to divest themselves of the Biblical idea that the world was a few thousand years old,… — 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
I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will… — Carl Sagan Copy Share Image
The wind whips through the canyons of the American Southwest, and there is no one to hear it but us - a… — Carl Sagan Copy Share Image
I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will… — Carl Sagan Copy Share Image
In college, in the early 1950s, I began to learn a little about how science works, the secrets of its great success,… — Carl Sagan Copy Share Image
What distinguishes our species is thought. The cerebral cortex is in a way a liberation. We need no longer be trapped in… — Carl Sagan Copy Share Image
Every thinking person fears nuclear war, and every technological state plans for it. Everyone knows it is madness, and every nation has… — 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 Image
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 Image
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 Image
“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 Image
“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 Image
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 Image
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 Image
“[ 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 Image
“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 Image
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 Image
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 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 for the effects. And I'd like people who are prepared to do some thinking to be really stimulated.” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/a25/carl-sagan-160_astronomy_i-d-like-the-cosmos-series-to-be-so-visu_849401.jpg)
![“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion, why do you not believe in materialistic science, which has an unparalleled record of fulfilled prophecy? Consider, for example, eclipses.” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/875/carl-sagan-160_belief_when-a-religious-couple-wrote-to-sagan-a_25095.jpg)
