If there is life, then I believe we should do nothing to disturb that life. Mars then, belongs to the Martians, even… — 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
Whatever the reason you're on Mars, I'm glad you're there, and I wish I was with you. — 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… — Carl Sagan Copy Share Image
If some good evidence for life after death were announced, I'd be eager to examine it; but it would have to be… — Carl Sagan Copy Share Image
“Mars has become a kind of mythic arena onto which we have projected our earthly hopes and fears. But our psychological predispositions… — Carl Sagan Copy Share Image
“The symbolism seemed so apt. The same technology that can propel apocalyptic weapons from continent to continent would enable the first human… — Carl Sagan Copy Share Image
Imagine we could accelerate continuously at 1 g-what we're comfortable with on good old terra firma-to the midpoint of our voyage, and… — 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
Goddard represented a unique combination of visionary dedication and technological brilliance. He studied physics because he needed physics to get to Mars.… — Carl Sagan Copy Share Image
“There are so many examples of human misuse of the Earth that even phrasing this question chills me. If there is life… — 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
