We are the representatives of the cosmos; we are an example of what hydrogen atoms can do, given 15 billion years of… — Carl Sagan Copy Share Image
“Those are some of the things that molecules do, given four billion years of evolution” — Carl Sagan Copy Share Image
After the earth dies, some 5 billion years from now, after it's burned to a crisp, or even swallowed by the Sun,… — 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
There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across… — 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
Some 5 billion years from now, there will be a last perfect day on Earth... then the sun will begin to die,… — Carl Sagan Copy Share Image
Present global culture is a kind of arrogant newcomer. It arrives on the planetary stage following four and a half billion years… — Carl Sagan Copy Share Image
“Long ago, when an early galaxy began to pour light out into the surrounding darkness, no witness could have known that billions… — Carl Sagan Copy Share Image
We on Earth have just awakened to the great oceans of space and time from which we have emerged. We are the… — 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)
