We live in an in-between universe where things change all right...but according to patterns, rules, or as we call them, laws of… — Carl Sagan Copy Share Image
But nature is always more subtle, more intricate, more elegant than what we are able to imagine. — Carl Sagan Copy Share Image
In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature. They can't help it. — Carl Sagan Copy Share Image
A multitude of aspects of the natural world that were considered miraculous only a few generations ago are now thoroughly understood in… — Carl Sagan Copy Share Image
The boundary between space and the earth is purely arbitrary. And I'll probably always be interested in this planet - it's my… — 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
“For the price of a modest meal you can ponder the decline and fall of the Roman Empire, the origin of species,… — Carl Sagan Copy Share Image
Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores… — 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
“If the Earth were as old as a person, a typical organism would be born, live and die in a sliver of… — 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
“But if humans can make new varieties of plants and animals, must not nature do so also? This related process is called… — Carl Sagan Copy Share Image
You probably don't need more weapons than what's required to destroy every city on earth. There's only 2,300 cities. So, the United… — Carl Sagan Copy Share Image
“The ancient Ionians were the first we know of to argue systematically that laws and forces of Nature, rather than gods, are… — Carl Sagan Copy Share Image
“He had a natural appetite for the wonders of the Universe. He wanted to know about science. It’s just that all the… — Carl Sagan Copy Share Image
“Now, it would be wholly foolish to deny the existence of laws of nature. And if that is what we are talking… — Carl Sagan Copy Share Image
“We embarked on our journey to the stars with a question first framed in the childhood of our species and in each… — Carl Sagan Copy Share Image
Every aspect of Nature reveals a deep mystery and touches our sense of wonder and awe. Those afraid of the universe as… — Carl Sagan Copy Share Image
“Our television signals leave this planet and go out into space...the signals spread out from the earth in spherical waves, a little… — 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
