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“We are like butterflies who flutter for a day and think it is forever.”
― Carl Sagan, Cosmos

“Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there-on a mote of dust suspended in a sunbeam.

The Earth is a very small stage in a vast cosmic arena. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot.

Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.

It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.”
― Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space

“For small creatures such as we the vastness is bearable only through love.”
― Carl Sagan

“Who is more humble? The scientist who looks at the universe with an open mind and accepts whatever the universe has to teach us, or somebody who says everything in this book must be considered the literal truth and never mind the fallibility of all the human beings involved?”
― Carl Sagan

“Somewhere, something incredible is waiting to be known.”
― Carl Sagan

“A still more glorious dawn awaits
Not a sunrise, but a galaxy rise
A morning filled with 400 billion suns
The rising of the milky way”
― Carl Sagan, Cosmos

“One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.”
― Carl Sagan

“If you wish to make an apple pie from scratch, you must first invent the universe.”
― Carl Sagan, Cosmos

“The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.”
― Carl Sagan

“The universe is a pretty big place. If it's just us, seems like an awful waste of space.”
― Carl Sagan, Contact

“I don't want to believe. I want to know.”
― Carl Sagan

“We are a way for the cosmos to know itself.”
― Carl Sagan, Cosmos

“The good thing about science is that it's true whether or not you believe in it.”
― Neil deGrasse Tyson

“For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You'd be surprised how far that gets you.”
― Neil deGrasse Tyson

“Recognize that the very molecules that make up your body, the atoms that construct the molecules, are traceable to the crucibles that were once the centers of high mass stars that exploded their chemically rich guts into the galaxy, enriching pristine gas clouds with the chemistry of life. So that we are all connected to each other biologically, to the earth chemically and to the rest of the universe atomically. That’s kinda cool! That makes me smile and I actually feel quite large at the end of that. It’s not that we are better than the universe, we are part of the universe. We are in the universe and the universe is in us.”
― Neil deGrasse Tyson

“We are going to die, and that makes us the lucky ones. Most people are never going to die because they are never going to be born. The potential people who could have been here in my place but who will in fact never see the light of day outnumber the sand grains of Arabia. Certainly those unborn ghosts include greater poets than Keats, scientists greater than Newton. We know this because the set of possible people allowed by our DNA so massively exceeds the set of actual people. In the teeth of these stupefying odds it is you and I, in our ordinariness, that are here.We privileged few, who won the lottery of birth against all odds, how dare we whine at our inevitable return to that prior state from which the vast majority have never stirred?”
― Richard Dawkins, Unweaving the Rainbow: Science, Delusion and the Appetite for Wonder

“There is something infantile in the presumption that somebody else has a responsibility to give your life meaning and point… The truly adult view, by contrast, is that our life is as meaningful, as full and as wonderful as we choose to make it.”
― Richard Dawkins, The God Delusion

“Science is interesting, and if you don't agree you can fuck off.

Note: Dawkins was quoting a former editor of New Scientist Magazine, who is as yet unidentified (possibly Jeremy Webb)”
― Richard Dawkins

“Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust. You couldn’t be here if stars hadn’t exploded, because the elements - the carbon, nitrogen, oxygen, iron, all the things that matter for evolution and for life - weren’t created at the beginning of time. They were created in the nuclear furnaces of stars, and the only way for them to get into your body is if those stars were kind enough to explode. So, forget Jesus. The stars died so that you could be here today.”
― Lawrence M. Krauss

“Words were different when they lived inside of you.”
― Benjamin Alire Sáenz, Aristotle and Dante Discover the Secrets of the Universe

“Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.”
― Carl Sagan, Cosmos

“The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.”
― Carl Sagan, Cosmos

“The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.”
― Carl Sagan, Cosmos

“The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what's true.”
― Carl Sagan

“Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.”
― Carl Sagan, Cosmos

“The universe seems neither benign nor hostile, merely indifferent.”
― Carl Sagan

“If it can be destroyed by the truth, it deserves to be destroyed by the truth.”
― Carl Sagan

“In all our searching, the only thing we've found that makes the emptiness bearable is each other.”
― Carl Sagan

“We are all one race. The only difference is the color of our skin, and that comes from how close your ancestors lived to the Equator or at high altitudes like Tibetans. There have always been tribes, but what we have to appreciate now is that we live in a global community. And tribal loyalties…they’re not relevant to our future.”
― Bill Nye The Science Guy

“We can change the world. I’m sure of it. Let’s go.”
― Bill Nye, Everything All At Once