“We must surrender our skepticism only in the face of rock-solid evidence. Science demands a tolerance for ambiguity. Where we are ignorant,… — Carl Sagan Copy Share Image
“Humans may crave absolute certainty; they may aspire to it; they may pretend, as partisans of certain religions do, to have attained… — Carl Sagan Copy Share Image
We humans look rather different from a tree. Without a doubt we perceive the world differently than a tree does. But down… — Carl Sagan Copy Share Image
It is the tension between creativity and skepticism that has produced the stunning and unexpected findings of science. — 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
“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
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
An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.… — Carl Sagan Copy Share Image
Nevertheless, (Jefferson) believed that the habit of skepticism is an essential prerequisite for responsible citizenship. He argued that the cost of education… — Carl Sagan Copy Share Image
In a lot of scientists, the ratio of wonder to skepticism declines in time. That may be connected with the fact that… — Carl Sagan Copy Share Image
The fact that so little of the findings of modern science is prefigured in Scripture to my mind casts further doubt on… — Carl Sagan Copy Share Image
Absolute certainty will always elude us. We will always be mired in error. The most each generation can hope for is to… — 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)
