“For the price of a modest meal you can ponder the decline and fall of the Roman Empire, the origin of species,… — Carl Sagan Copy Share Image
The cosmos is full beyond measure of elegant truths / of exquisite interrelationships / of the awesome machinery of nature — Carl Sagan Copy Share Image
You mustn't think of the Universe as a wilderness. It hasn't been that for billions of years," he said. "Think of it… — Carl Sagan Copy Share Image
“Now, it would be wholly foolish to deny the existence of laws of nature. And if that is what we are talking… — Carl Sagan Copy Share Image
You probably don't need more weapons than what's required to destroy every city on earth. There's only 2,300 cities. So, the United… — Carl Sagan Copy Share Image
Except for children (who don't know enough not to ask the important questions), few of us spendtime wondering why nature is 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