The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but… — Carl Sagan Copy Share Image
Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe. — Carl Sagan Copy Share Image
“It is pointless to worry about the possible malevolent intentions of an advanced civilization with whom we might make contact. It is… — Carl Sagan Copy Share Image
Teller contended, not implausibly, that hydrogen bombs keep the peace, or at least prevent thermonuclear war, because the consequences of warfare between… — Carl Sagan Copy Share Image
“President Ronald Reagan, who spent World War II in Hollywood, vividly described his own role in liberating Nazi concentration camp victims. Living… — Carl Sagan Copy Share Image
“Vast migrations of people—some voluntary, most not—have shaped the human condition. More of us flee from war, oppression, and famine today than… — 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
Quickly capping 363 oil well fires in a war zone is impossible. The fires would burn out of control until they put… — 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
All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science. But that passion… — 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
“The symbolism seemed so apt. The same technology that can propel apocalyptic weapons from continent to continent would enable the first human… — 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
Since World War II, Japan has spawned enormous numbers of new religions featuring the supernatural.... In Thailand, diseases are treated with pills… — Carl Sagan Copy Share Image
Chlorine is a deadly poison gas employed on European battlefields in World War I. Sodium is a corrosive metal which burns upon… — Carl Sagan Copy Share Image
Every thinking person fears nuclear war, and every technological state plans for it. Everyone knows it is madness, and every nation has… — Carl Sagan Copy Share Image
Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history. — Carl Sagan Copy Share Image
“The Somnium makes clear to us, although it did not to all of Kepler’s contemporaries, that “in a dream one must be… — 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
![“Quickly capping 363 oil well fires in a war zone is impossible. The fires would burn out of control until they put themselves out... The resulting soot might well stretch over all of South Asia... It could be carried around the world... [and] the consequences could be dire. Beneath such a pall…” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/a7d/carl-sagan-160_around-the-world_quickly-capping-363-oil-well-fires-in-a_1517692.jpg)
![“Since World War II, Japan has spawned enormous numbers of new religions featuring the supernatural.... In Thailand, diseases are treated with pills manufactured from pulverized sacred Scripture. Witches are today being burned in South Africa.... The worldwide TM [Transcendental Meditation]…” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/c27/carl-sagan-160_atheist_since-world-war-ii-japan-has-spawned-eno_2437563.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)
