Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred… — 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
A tiny blue dot set in a sunbeam. Here it is. That's where we live. That's home. We humans are one species… — 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
“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
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
The lifetime of a human being is measured by decades, the lifetime of the Sun is a hundred million times longer. Compared… — 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
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they… — 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
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
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 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
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
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
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
Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe. — 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
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
If we are to survive, our loyalties must be broadened further, to include the whole human community, the entire planet Earth. — Carl Sagan Copy Share Image
Football is a thinly disguised re-enactment of hunting; we played it before we were human. — Carl Sagan Copy Share Image
For all our failings, despite our limitations and fallibilities, we humans are capable of greatness. — Carl Sagan Copy Share Image
Accommodation to change, the thoughtful pursuit of alternative futures are keys to the survival of civilization and perhaps of the human species. — 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
“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
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
