My parents were not scientists. They knew almost nothing about science. But in introducing me simultaneously to skepticism and to wonder, they… — Carl Sagan Copy Share Image
At the heart of science is an essential balance between two seemingly contradictory attitudes-an openness to new ideas, no matter how bizarre… — 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
My long-time view about Christianity is that it represents an amalgam of two seemingly immiscible parts-the religion of Jesus and the religion… — Carl Sagan Copy Share Image
What counts is not what sounds plausible, not what we would like to believe, not what one or two witnesses claim, but… — Carl Sagan Copy Share Image
I set before you two ways: You can use your technology to destroy yourselves or to carry you to the planets and… — Carl Sagan Copy Share Image
Scientists can routinely predict a solar eclipse, to the minute, a millennium in advance. You can go to the witch doctor to… — Carl Sagan Copy Share Image
Science cuts two ways, of course; its products can be used for both good and evil. But there's no turning back from… — Carl Sagan Copy Share Image
First rule in government spending: why build one when you can have two at twice the price? — 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
[Science] is not perfect. It can be misused. It is only a tool. But it is by far the best tool we… — Carl Sagan Copy Share Image
“It seems to me what is called for is an exquisite balance between two conflicting needs: the most skeptical scrutiny of all… — Carl Sagan Copy Share Image
Imagine a room awash in gasoline, and there are two implacable enemies in that room. One of them has nine thousand matches.… — 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
![“[Science] is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything. It has two rules. First: there are no sacred truths; all assumptions must be critically examined; arguments from authority are worthless…” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/0b3/carl-sagan-160_argument_science-is-not-perfect-it-can-be-misused_2558360.jpg)
![“[ 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)
