You can get into a habit of thought in which you enjoy making fun of all those other people who don't see… — Carl Sagan Copy Share Image
When permitted to listen to alternative opinions and engage in substantive debate, people have been known to change their minds. It can… — Carl Sagan Copy Share Image
Most of the people that I deal with are human. So I've had a lot of experience with that. — Carl Sagan Copy Share Image
I think the discomfort that some people feel in going to the monkey cages at the zoo is a warning sign. — Carl Sagan Copy Share Image
Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague,… — Carl Sagan Copy Share Image
Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break… — Carl Sagan Copy Share Image
It seems madness to say, 'We're worried that they're going to become addicted to marijuana' -- there's no evidence whatever that it's… — Carl Sagan Copy Share Image
History is full of people who out of fear, or ignorance, or lust for power has destroyed knowledge of immeasurable value which… — Carl Sagan Copy Share Image
The reappearance of the crescent moon after the new moon; the return of the Sun after a total eclipse, the rising of… — Carl Sagan Copy Share Image
In Italy, the Inquisition was condemning people to death until the end of the eighteenth century, and inquisitional torture was not abolished… — 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
One trend that bothers me is the glorification of stupidity, that the media is reassuring people it's alright not to know anything.… — Carl Sagan Copy Share Image
The chief deficiency I see in the skeptical movement is its polarization: Us vs. Them - the sense that we have a… — Carl Sagan Copy Share Image
I have a foreboding of an America in my children's or grandchildren's time - [...] when awesome technological powers are in the… — Carl Sagan Copy Share Image
The Romans called the Christians atheists. Why? Well, the Christians had a god of sorts, but it wasn't a real god. They… — Carl Sagan Copy Share Image
A book is made from a tree. It is an assemblage of flat, flexible parts (still called "leaves") imprinted with dark pigmented… — Carl Sagan Copy Share Image
Human history can be viewed as a slowly dawning awareness that we are members of a larger group Groups of people from… — Carl Sagan Copy Share Image
...the idea of a spiritual part of our nature that survives death, the notion of an afterlife, ought to be easy for… — Carl Sagan Copy Share Image
But, Jefferson worried that the people - and the argument goes back to Thucydides and Aristotle - are easily misled. He also… — Carl Sagan Copy Share Image
I never said it. Honest. Oh, I said there are maybe 100 billion galaxies and 10 billion trillion stars. It's hard to… — Carl Sagan Copy Share Image
“Can you be sure that others have not come before you and destroyed the pristine state of the native myth? Can you… — Carl Sagan Copy Share Image
I'd like the [Cosmos] series to be so visually stimulating that somebody who isn't even interested in the concepts will just watch… — Carl Sagan Copy Share Image
People are not stupid. They believe things for reasons. The last way for skeptics to get the attention of bright, curious, intelligent… — Carl Sagan Copy Share Image
There are huge advertising budgets only when there's no difference between the products. If the products really were different, people would buy… — Carl Sagan Copy Share Image
Your religion assumes that people are children and need a boogeyman so they'll behave. You want people to believe in God so… — 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
Nevertheless, (Jefferson) believed that the habit of skepticism is an essential prerequisite for responsible citizenship. He argued that the cost of education… — 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
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