“Even if the aliens are short, dour, and sexually obsessed—if they’re here, I want to know about them.” — 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
If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. Sailors on… — Carl Sagan Copy Share Image
Since, in the long run, every planetary society will be endangered by impacts from space, every surviving civilization is obliged to become… — 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
Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become… — Carl Sagan Copy Share Image
“Each Voyager is itself a message. In their exploratory intent, in the lofty ambition of their objectives, in their utter lack of… — Carl Sagan Copy Share Image
“If we are to send people, it must be for a very good reason - and with a realistic understanding that almost… — Carl Sagan Copy Share Image
“I find these comparisons particularly poignant: life versus death, hope versus fear. Space exploration and the highly mechanized destruction of people use… — Carl Sagan Copy Share Image
“The American and Russian capabilities in space science and technology mesh; they interdigitate. Each is strong where the other is weak. This… — 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
“At the very moment that humans discovered the scale of the universe and found that their most unconstrained fancies were in fact… — 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
