In exchange for freedom of inquiry, scientists are obliged to explain their work. — Carl Sagan Copy Share Image
I believe that in every person is a kind of circuit which resonates to intellectual discovery-and the idea is to make that… — Carl Sagan Copy Share Image
“Science is based on experiment, on a willingness to challenge old dogma, on an openness to see the universe as it really… — Carl Sagan Copy Share Image
Recent research shows that many children without enough to eat wind up with diminished capacity to understand and learn (“cognitive impairment” ).… — Carl Sagan Copy Share Image
Recent research shows that many children who do not have enough to eat wind up with diminished capacity to understand and learn.… — Carl Sagan Copy Share Image
Societies will, of course, wish to exercise prudence in deciding which technologies that is, which applications of science are to be pursued… — Carl Sagan Copy Share Image
“Another of Mack’s patients says that the aliens have been taking eggs from her since she was sexually mature, and that her… — 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… — Carl Sagan Copy Share Image
“Why do we put up with it? Do we like to be criticized? No, no scientist enjoys it. Every scientist feels a… — Carl Sagan Copy Share Image
“Science is generated by and devoted to free inquiry: the idea that any hypothesis, no matter how strange, deserves to be considered… — Carl Sagan Copy Share Image
“The best way to avoid abuses is for the populace in general to be scientifically literate, to understand the implications of such… — Carl Sagan Copy Share Image
“Science thrives on errors, cutting them away one by one. False conclusions are drawn all the time, but they are drawn tentatively.… — 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
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
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
“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
“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
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
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
“[ 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
“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
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
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
Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no. — Carl Sagan Copy Share
Humans — who enslave, castrate, experiment on, and fillet other animals — have had an understandable penchant for pretending animals do not feel pain.… — Carl Sagan Copy Share
