“It does no harm to the romance of the sunset to know a little about it.” — Carl Sagan Copy Share Image
“Para criaturas pequenas como nós, a vastidão só é suportável através do amor.” — Carl Sagan Copy Share Image
Those at too great a distance may, I am well are, mistake ignorance for perspective. — Carl Sagan Copy Share Image
“We are alive and we resonate with idea of life elsewhere, but only careful accumulation and assessment of the evidence can tell… — Carl Sagan Copy Share Image
“I promise to question everything my leaders tell me. I promise to use my critical faculties. I promise to develop my independence… — Carl Sagan Copy Share Image
“One consequence of this train of argument is that, even if civilizations commonly arise on planets throughout the Galaxy, few of them… — Carl Sagan Copy Share Image
“Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But… — Carl Sagan Copy Share Image
“Planetary exploration satisfies our inclination for great enterprises and wanderings and quests that has been with us since our days as hunters… — Carl Sagan Copy Share Image
“The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future,… — Carl Sagan Copy Share Image
“I don't think science is hard to teach because humans aren't ready for it, or because it arose only through a fluke,… — Carl Sagan Copy Share Image
“Just as there are those who accept every UFO report at face value, there are also those who dismiss the idea of… — Carl Sagan Copy Share Image
“The scope and audacity of John Kennedy’s May 25, 1961, message to a joint session of Congress on “Urgent National Needs”—the speech… — Carl Sagan Copy Share Image
“Can you be sure that others have not come before you and destroyed the pristine state of the native myth? Can you… — Carl Sagan Copy Share Image
“Every now and then, I'm lucky enough to teach a kindergarten or first-grade class. Many of these children are natural-born scientists -… — 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
