We humans appear on the cosmic calendar so recently that our recorded history occupies only the last few seconds of the last… — Carl Sagan Copy Share Image
Human beings grew up in forests; we have a natural affinity for them. How lovely a tree is, straining toward the sky. — Carl Sagan Copy Share Image
How lucky we are to live in this time / the first moment in human history / when we are in fact… — Carl Sagan Copy Share Image
Some racists still reject the plain testimony written in the DNA that all the races are not only human but nearly indistinguishable. . . . — Carl Sagan Copy Share Image
We have heard the rationales offered by the nuclear superpowers. We know who speaks for the nations. But who speaks for the… — Carl Sagan Copy Share Image
It would be wryly interesting if in human history the cultivation of marijuana led generally to the invention of agriculture, and thereby… — Carl Sagan Copy Share Image
There is perhaps no better a demonstration of the folly of human conceits than this distant image of our tiny world. — Carl Sagan Copy Share Image
Our children long for realistic maps of the future that they can be proud of. Where are the cartographers of human purpose? — Carl Sagan Copy Share Image
“The Apollo pictures of the whole Earth conveyed to multitudes something well known to astronomers: On the scale of the worlds -… — Carl Sagan Copy Share Image
Philosophers and scientists confidently offer up traits said to be uniquely human, and the monkeys and apes casually knock them down --… — Carl Sagan Copy Share Image
Much of human history can, I think, be described as a gradual and sometimes painful liberation from provincialism, the emerging awareness that… — Carl Sagan Copy Share Image
There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection… — Carl Sagan Copy Share Image
The library connects us with the insight and knowledge, painfully extracted from Nature, of the greatest minds that ever were, with the… — Carl Sagan Copy Share Image
Ask courageous questions. Do not be satisfied with superficial answers. Be open to wonder and at the same time subject all claims… — Carl Sagan Copy Share Image
There are many hypotheses in physics of almost comparable brillance and elegance that have been rejected because they did not survive such… — Carl Sagan Copy Share Image
A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know… — 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
My deeply held belief is that if a god of anything like the traditional sort exists, our curiosity and intelligence are provided… — Carl Sagan Copy Share Image
When you buy a used car, you kick the tires, you look at the odometer, you open up the hood. If you… — Carl Sagan Copy Share Image
“It is pointless to worry about the possible malevolent intentions of an advanced civilization with whom we might make contact. It is… — Carl Sagan Copy Share Image
Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human… — Carl Sagan Copy Share Image
You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human… — Carl Sagan Copy Share Image
Humans - who enslave, castrate, experiment on, and fillet other animals - have had an understandable penchant for pretending animals do not… — Carl Sagan Copy Share Image
Both the Freudian and the Platonic metaphors emphasize the considerable independence of and tension among the constituent parts of the psyche, a… — Carl Sagan Copy Share Image
Virtually every major technological advance in the history of the human species - back to the invention of stone tools and the… — Carl Sagan Copy Share Image
A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself… — Carl Sagan Copy Share Image
The neurochemistry of the brain is astonishingly busy, the circuitry of a machine more wonderful than any devised by humans. But there… — 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
“Or perhaps they are here, but in hiding because of some Lex Galactica , some ethic of noninterference with emerging civilizations. We… — Carl Sagan Copy Share Image
Human history can be viewed as a slowly dawning awareness that we are members of a larger group Groups of people from… — Carl Sagan Copy Share Image
If chimpanzees have consciousness, if they are capable of abstractions, do they not have what until now has been described as 'human… — Carl Sagan Copy Share Image
Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human… — Carl Sagan Copy Share Image
What an astonishing thing a book is. It’s a flat object made from a tree with flexible parts on which are imprinted… — 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… — Carl Sagan Copy Share Image
What a splendid perspective contact with a profoundly different civilization might provide! In a cosmic setting vast and old beyond ordinary human… — Carl Sagan Copy Share Image
“For me, the most ironic token of [the first human moon landing] is the plaque signed by President Richard M. Nixon that… — Carl Sagan Copy Share Image
Your religion assumes that people are children and need a boogeyman so they'll behave. You want people to believe in God so… — Carl Sagan Copy Share Image
A single message from space will show that it is possible to live through technological adolescence. . . . It is possible… — Carl Sagan Copy Share Image
Who is more humble? The scientist who looks at the universe with an open mind and accepts whatever the universe has to… — Carl Sagan Copy Share Image
We all have a thirst for wonder. It's a deeply human quality. Science and religion are both bound up with it. What… — 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
Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no. — Carl Sagan Copy Share Image
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 Image
![“Human history can be viewed as a slowly dawning awareness that we are members of a larger group Groups of people from divergent ethnic and cultural backgrounds working in some sense together [is] surely a humanizing and character building experience. If we are to survive, our loyalties must be…” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/368/carl-sagan-160_awareness_human-history-can-be-viewed-as-a-slowly_3106338.jpg)
![“For me, the most ironic token of [the first human moon landing] is the plaque signed by President Richard M. Nixon that Apollo 11 took to the moon. It reads: "We came in peace for all Mankind." As the United States was dropping 7 ½ megatons of conventional explosives on small nations in Southeast…” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/e05/carl-sagan-160_apollo_for-me-the-most-ironic-token-of-the-firs_259130.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)
