It is sometimes said that scientists are unromantic, that their passion to figure out robs the world of beauty and mystery. But… — Carl Sagan Copy Share Image
There is no other species on Earth that does science. It is, so far, entirely a human invention, evolved by natural selection… — Carl Sagan Copy Share Image
The claim is also sometimes made that science is as arbitrary or irrational as all other claims to knowledge, or that reason… — Carl Sagan Copy Share Image
The values of science and the values of democracy are concordant, in many cases indistinguishable. Science and democracy began - in their… — Carl Sagan Copy Share Image
We are the product of 4.5 billion years of fortuitous, slow biological evolution. There is no reason to think that the evolutionary… — Carl Sagan Copy Share Image
The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five. — Carl Sagan Copy Share Image
One of the reasons for its success is that science has a built-in, error-correcting machinery at its very heart. Some may consider… — Carl Sagan Copy Share Image
We should be teaching our children the scientific method and the reasons for a Bill of Rights. With it comes a certain… — 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
If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in… — 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
“I have a foreboding of an America in my children's or grandchildren's time -- when the United States is a service and… — 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
People are not stupid. They believe things for reasons. The last way for skeptics to get the attention of bright, curious, intelligent… — Carl Sagan Copy Share Image
Scientists constantly get clobbered with the idea that we spent 27 billion dollars on the Apollo programs, and are asked "What more… — Carl Sagan Copy Share Image
Our intelligence is imperfect, surely, and newly arisen; the ease with which it can be sweet-talked, overwhelmed, or subverted by other hardwired… — Carl Sagan Copy Share Image
Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague,… — Carl Sagan Copy Share Image
Before we invented civilization our ancestors lived mainly in the open out under the sky. Before we devised artificial lights and atmospheric… — 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
The uniqueness of humans has been claimed on many grounds, but most often because of our tool-making, culture, language, reason and morality.… — 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
![“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion, why do you not believe in materialistic science, which has an unparalleled record of fulfilled prophecy? Consider, for example, eclipses.” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/875/carl-sagan-160_belief_when-a-religious-couple-wrote-to-sagan-a_25095.jpg)
