There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science… — 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
“If we offer too much silent assent about mysticism and superstition - even when it seems to be doing a little good… — Carl Sagan Copy Share Image
“For ages men had used sticks to club and spear each other—Anaximander of Miletus used the stick to measure time.” — Carl Sagan Copy Share Image
“Claims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value the may have in inspiring us or in… — carl sagan Copy Share Image
“The best way to avoid abuses is for the populace in general to be scientifically literate, to understand the implications of such… — Carl Sagan Copy Share Image
Science is far from a perfect instrument of knowledge. It's just the best we have. — Carl Sagan Copy Share Image
It's a lazy Saturday afternoon, there's a couple lying naked in bed reading Encyclopediea Brittannica to each other, and arguing about whether… — Carl Sagan Copy Share Image
Is it fair to be suspicious of an entire profession because of a few bad apples? There are at least two important… — Carl Sagan Copy Share Image
I believe that the extraordinary should be pursued. But extraordinary claims require extraordinary evidence. — Carl Sagan Copy Share Image
“All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science. But that passion… — Carl Sagan Copy Share Image
As agonizing a disease as cancer is, I do not think it can be said that our civilization is threatened by it.… — Carl Sagan Copy Share Image
Not explaining science seems to me perverse. When you're in love, you want to tell the world. — 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
“I try not to think with my gut. If I'm serious about understanding the world, thinking with anything besides my brain, as… — Carl Sagan Copy Share Image
Science and mathematics [are] much more compelling and exciting than the doctrines of pseudoscience, whose practitioners were condemned as early as the… — Carl Sagan Copy Share Image
In the way that scepticism is sometimes applied to issues of public concern, there is a tendency to belittle, to condescend, to… — Carl Sagan Copy Share Image
“The secrets of evolution, are time and death. There's an unbroken thread that stretches from those first cells to us.” — Carl Sagan Copy Share Image
The idea that God is an oversized white male with a flowing beard, who sits in the sky and tallies the fall… — Carl Sagan Copy Share Image
“In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with… — Carl Sagan Copy Share Image
How is it that hardly any major religion has looked at science and concluded, “This is better than we thought! The Universe… — Carl Sagan Copy Share Image
We all have a thirst for wonder. It's a deeply human quality. Science and religion are both bound up with it. What… — Carl Sagan Copy Share Image
“Science is generated by and devoted to free inquiry: the idea that any hypothesis, no matter how strange, deserves to be considered… — Carl Sagan Copy Share Image
“It does no harm to the romance of the sunset to know a little about it.” — Carl Sagan Copy Share Image
The method of science is tried and true. It is not perfect, it's just the best we have. And to abandon it,… — 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
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