National boundaries are not evident when we view the Earth from space. Fanatical ethnic or religious or national chauvinisms are a little… — 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
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
Anything else you're interested in is not going to happen if you can't breathe the air and drink the water. Don't sit… — Carl Sagan Copy Share Image
We are...capable of using our compassion and our intelligence, our technology and our wealth, to make an abundant and meaningful life for… — Carl Sagan Copy Share Image
Each of us is a tiny being, permitted to ride on the outermost skin of one of the smaller planets for a… — Carl Sagan Copy Share Image
The significance of our lives and our fragile planet is then determined only by our own wisdom and courage. We are the… — Carl Sagan Copy Share Image
For all our conceits about being the center of the universe, we live in a routine planet of a humdrum star stuck… — Carl Sagan Copy Share Image
We seem, these days, much more willing to recognize the perils before us than we were even a decade ago. The newly… — 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
I set before you two ways: You can use your technology to destroy yourselves or to carry you to the planets and… — Carl Sagan Copy Share Image
Which aspects of our nature will prevail is uncertain, particularly when our visions and prospects are bound to one small part of… — 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 Platonists and their Christian successors held the peculiar notion that the Earth was tainted and somehow nasty, while the heavens were… — Carl Sagan Copy Share Image
We live at a moment when our relationships to each other, and to all other beings with whom we share this planet,… — Carl Sagan Copy Share Image
We are the only species on the planet, so far as we know, to have invented a communal memory stored neither in… — Carl Sagan Copy Share Image
Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no… — Carl Sagan Copy Share Image
What a marvelous cooperative arrangement - plants and animals each inhaling each other's exhalations, a kind of planet-wide mutual mouth-to-stoma resuscitation, the… — Carl Sagan Copy Share Image
“On Titan the molecules that have been raining down like manna from heaven for the last 4 billion years might still be… — Carl Sagan Copy Share Image
Centuries hence, when current social and political problems may seem as remote as the problems of the Thirty Years' War are to… — 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
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
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
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
