There is perhaps no better a demonstration of the folly of human conceits than this distant image of our tiny world. — Carl Sagan Copy Share Image
The boundary between space and the earth is purely arbitrary. And I'll probably always be interested in this planet - it's my… — Carl Sagan Copy Share Image
As the ancient myth makers knew, we are children equally of the earth and the sky. — Carl Sagan Copy Share Image
“The Earth is the only world known so far to harbour life. There is nowhere else, at least in the near future,… — Carl Sagan Copy Share Image
Which aspects of our nature will prevail is uncertain, particularly when our visions and prospects are bound to one small part of… — Carl Sagan Copy Share Image
Eratosthenes's only tools were sticks, eyes, feet, and brains; plus a zest for experiment. With those tools he correctly deduced the circumference… — Carl Sagan Copy Share Image
A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself… — Carl Sagan Copy Share Image
The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.… — Carl Sagan Copy Share Image
The Platonists and their Christian successors held the peculiar notion that the Earth was tainted and somehow nasty, while the heavens were… — Carl Sagan Copy Share Image
“The Apollo pictures of the whole Earth conveyed to multitudes something well known to astronomers: On the scale of the worlds -… — Carl Sagan Copy Share Image
“Whatever the reason we first mustered the _Apollo_ program, however mired it was in Cold War nationalism and the instruments of death,… — Carl Sagan Copy Share Image
We are rare and precious because we are alive, because we can think as well as we can. We are privileged to… — 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
If we do not speak for Earth, who will? If we are not committed to our own survival, who will be? — Carl Sagan Copy Share Image
Centuries hence, when current social and political problems may seem as remote as the problems of the Thirty Years' War are to… — Carl Sagan Copy Share Image
If you look at Earth from space you see a dot, that's here. That's home. That's us. It underscores the responsibility to… — Carl Sagan Copy Share Image
A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself… — Carl Sagan Copy Share Image
The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the… — Carl Sagan Copy Share Image
What a splendid perspective contact with a profoundly different civilization might provide! In a cosmic setting vast and old beyond ordinary human… — Carl Sagan Copy Share Image
When you look more generally at life on Earth, you find that it is all the same kind of life. There are… — Carl Sagan Copy Share Image
“Coal, oil and gas are called fossil fuels, because they are mostly made of the fossil remains of beings from long ago.… — 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
