Science is not only compatible with spirituality; it is a profound source of spirituality. — Carl Sagan Copy Share Image
“We are alive and we resonate with idea of life elsewhere, but only careful accumulation and assessment of the evidence can tell… — Carl Sagan Copy Share Image
I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside,… — Carl Sagan Copy Share Image
The difference between physics and metaphysics is not that the practitioners of one are smarter than the practitioners of the other. The… — Carl Sagan Copy Share Image
The fossil record implies trial and error, the inability to anticipate the future, features inconsistent with a Great Designer (though not a… — Carl Sagan Copy Share Image
There is today-in a time when old beliefs are withering-a kind of philosophical hunger, a need to know who we are and… — Carl Sagan Copy Share Image
Philosophers and scientists confidently offer up traits said to be uniquely human, and the monkeys and apes casually knock them down --… — Carl Sagan Copy Share Image
“the English philosopher John Stuart Mill argued that silencing an opinion is “a peculiar evil.” If the opinion is right, we are… — Carl Sagan Copy Share Image
“Or perhaps they are here, but in hiding because of some Lex Galactica , some ethic of noninterference with emerging civilizations. We… — Carl Sagan Copy Share Image
“There is something stunningly narrow about how the Anthropic Principle is phrased. Yes, only certain laws and constants of nature are consistent… — Carl Sagan Copy Share Image
'In his celebrated book, 'On Liberty', the English philosopher John Stuart Mill argued that silencing an opinion is "a peculiar evil." If… — Carl Sagan Copy Share Image
I believe that even a smattering of such findings in modern science and mathematics is far more compelling and exciting than most… — Carl Sagan Copy Share Image
Science and mathematics [are] much more compelling and exciting than the doctrines of pseudoscience, whose practitioners were condemned as early as the… — Carl Sagan Copy Share Image
“[Thales] was reproached for his poverty, which was supposed to show that philosophy is of no use. According to the story, he… — Carl Sagan Copy Share Image
“In the 1920s, there was a dinner at which the physicist Robert W. Wood was asked to respond to a toast ...… — Carl Sagan Copy Share Image
“We live in an extraordinary age. These are times of stunning changes in social organization, economic well-being, moral and ethical precepts, philosophical… — Carl Sagan Copy Share Image
“From this distant vantage point, the Earth might not seem of particular interest. But for us, it's different. Consider again that dot.… — 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