Carl Sagan Quotes
-
We are like butterflies who flutter for a day and think it's forever.
-
There is no question that religions have historically played the role of making people contented with their lot. ...such a doctrine would be very appealing to the ruling classes of a society. ...Many societies, for this reason alone, encourage the contentment with your lot that the religious premise of heaven affords.
-
No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception.
-
I try not to think with my gut. If I'm serious about understanding the world, thinking with anything besides my brain, as tempting as that might be, is likely to get me into trouble. Really, it's okay to reserve judgment until the evidence is in.
-
Most of the people that I deal with are human. So I've had a lot of experience with that.
-
The origin of life happened in significantly less than 500 million years. ...Six days was once a popular hypothesis. ...A process that happens quickly is a process that is in some sense likely... this evidence suggests that the origin of life was in some sense easy, in some sense sitting in the laws of physics and chemistry.
-
We are the representatives of the cosmos; we are an example of what hydrogen atoms can do, given 15 billion years of cosmic evolution.
-
This image of four spectra is taken from one of Huggins's publications. ...You can see that the Comet Winnecke resembles olive oil more than it does Comet Brorsen.
-
If a marker were to be erected today, it might read, in homage to his scientific courage: 'He preferred the hard truth to his dearest illusions.'
-
Every thinking person fears nuclear war and every technological nation plans for it. Everyone knows it's madness, and every country has an excuse.
-
Suppose your father... walked into this room at the ordinary human pace of walking. And suppose just behind him was his father. How long would we have to wait before the ancestor who enters the now-open door is a creature who normally walked on all fours? The answer is a week.
-
If there's nothing in here but atoms, does that make us less or does that make matter more?
-
Something dreadful happens to students between first and twelfth grades, and it's not just puberty.
-
Science is ... a way of skeptically interrogating the universe with a fine understanding of human fallibility. If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then we’re up for grabs for the next charlatan, political or religious, who comes ambling along.'
-
In the vastness of the Cosmos there must be other civilizations far older and more advanced than ours.
-
A googolplex is precisely as far from infinity as is the number 1... no matter what number you have in mind, infinity is larger still.
-
That it will never come againIs what makes life so sweet.
-
Astronomically, the U. S. S. R. and the United States are the same place.
-
The history of science-especially physics-has in part been the tension between the natural tendency to project our everyday experience on the universe and the universe's noncompliance...
-
I think people in power have a vested interest to oppose critical thinking.
-
The fossil record implies trial and error, an inability to anticipate the future, features inconsistent with an efficient Great Designer.
-
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 is our world. It is our responsibility to cherish it. Of all the worlds in our solar system, the only one so far as we know, graced by life.
-
This is Phobos... Its mean density is known, and it is consistent with organic matter. Deimos... same story.
-
Not explaining science seems to me perverse. When you're in love, you want to tell the world.