Cosmology Quotes

“For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“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

“The role played by time at the beginning of the universe is, I believe, the final key to removing the need for a Grand Designer, and revealing how the universe created itself. … Time itself must come to a stop. You can’t get to a time before the big bang, because there was no time before the big bang. We have finally found something that does not have a cause because there was no time for a cause to exist in. For me this means there is no possibility of a creator because there is no time for a creator to have existed. Since time itself began at the moment of the Big Bang, it was an event that could not have been caused or created by anyone or anything. … So when people ask me if a god created the universe, I tell them the question itself makes no sense. Time didn’t exist before the Big Bang, so there is no time for God to make the universe in. It’s like asking for directions to the edge of the Earth. The Earth is a sphere. It does not have an edge, so looking for it is a futile exercise.”
― Stephen W. Hawking

“I believe a leaf of grass is no less than the journey-work of the stars.”
― Walt Whitman

“The Hindu religion is the only one of the world’s great faiths dedicated to the idea that the Cosmos itself undergoes an immense, indeed an infinite, number of deaths and rebirths.
It is the only religion in which the time scales correspond to those of modern scientific cosmology. Its cycles run from our ordinary day and night to a day and night of Brahma, 8.64 billion years long. Longer than the age of the Earth or the Sun and about half the time since the Big Bang.”
― Carl Sagan, Cosmos

“My view is that if your philosophy is not unsettled daily then you are blind to all the universe has to offer.”
― Neil deGrasse Tyson

“And when the universe has finished exploding all the stars will slow down, like a ball that has been thrown into the air, and they will come to a halt and they will all begin to fall towards the centre of the universe again. And then there will be nothing to stop us seeing all the stars in the world because they will all be moving towards us, gradually faster and faster, and we will know that the world is going to end soon because when we look up into the sky at night there will be no darkness, just the blazing light of billions and billions of stars, all falling.”
― Mark Haddon, The Curious Incident of the Dog in the Night-time

“Philosophy [nature] is written in that great book which ever is before our eyes -- I mean the universe -- but we cannot understand it if we do not first learn the language and grasp the symbols in which it is written. The book is written in mathematical language, and the symbols are triangles, circles and other geometrical figures, without whose help it is impossible to comprehend a single word of it; without which one wanders in vain through a dark labyrinth.”
― Galileo

“And when you look at the sky you know you are looking at stars which are hundreds and thousands of light-years away from you. And some of the stars don’t even exist anymore because their light has taken so long to get to us that they are already dead, or they have exploded and collapsed into red dwarfs. And that makes you seem very small, and if you have difficult things in you life it is nice to think that they are what is called negligible, which means they are so small you don’t have to take them into account when you are calculating something.”
― Mark Haddon, The Curious Incident of the Dog in the Night-Time

“A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless, what is the value of a human being?”
― Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space

“The bright sun was extinguish'd, and the stars
Did wander darkling in the eternal space.”
― Lord Byron George Gordon

“Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case, the idea is quite staggering.”
― Arthur C. Clarke

“Something deeply hidden had to be behind things.”
― Albert Einstein, Autobiographical Notes

“We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make up the Milky Way Galaxy which is one of billions of other galaxies which make up a universe which may be one of a very large number, perhaps an infinite number, of other universes. That is a perspective on human life and our culture that is well worth pondering.”
― Carl Sagan

“Science is opposed to theological dogmas because science is founded on fact. To me, the universe is simply a great machine which never came into being and never will end. The human being is no exception to the natural order. Man, like the universe, is a machine. Nothing enters our minds or determines our actions which is not directly or indirectly a response to stimuli beating upon our sense organs from without. Owing to the similarity of our construction and the sameness of our environment, we respond in like manner to similar stimuli, and from the concordance of our reactions, understanding is born. In the course of ages, mechanisms of infinite complexity are developed, but what we call 'soul' or 'spirit,' is nothing more than the sum of the functionings of the body. When this functioning ceases, the 'soul' or the 'spirit' ceases likewise.

I expressed these ideas long before the behaviorists, led by Pavlov in Russia and by Watson in the United States, proclaimed their new psychology. This apparently mechanistic conception is not antagonistic to an ethical conception of life.”
― Nikola Tesla, Inventions, Researches and Writings of Nikola Tesla

“The full cosmos consists of the physical stuff and consciousness. Take away consciousness and it's only dust; add consciousness and you get things, ideas, and time.”
― Neal Stephenson, Anathem

“A world where it is safe to love is a world where it is safe to live”
― Serena Anderlini-D'Onofrio

“One possibility is: God is nothing but the power of the universe to organize itself.”
― Lee Smolin

“I would suggest that science is, at least in my part, informed worship.”
― Carl Sagan, The Varieties of Scientific Experience: A Personal View of the Search for God

“The total amount of energy from outside the solar system ever received by all the radio telescopes on the planet Earth is less than the energy of a single snowflake striking the ground.”
― Carl Sagan, Cosmos

“How can we satisfy ourselves without going on in infinitum? And, after all, what satisfaction is there in that infinite progression? Let us remember the story of the Indian philosopher and his elephant. It was never more applicable than to the present subject. If the material world rests upon a similar ideal world, this ideal world must rest upon some other; and so on, without end. It were better, therefore, never to look beyond the present material world.”
― David Hume, Dialogues Concerning Natural Religion

“It took less than an hour to make the atoms, a few hundred million years to make the stars and planets, but five billion years to make man!”
― George Gamow, The Creation of the Universe

“It is possible that these millions of suns, along with thousands of millions more we cannot see, make up altogether but a globule of blood or lymph in the veins of an animal, of a minute insect, hatched in a world of whose vastness we can frame no conception, but which nevertheless would itself, in proportion to some other world, be no more than a speck of dust.”
― Anatole France, The Garden Of Epicurus

“Some piously record 'In the beginning God', but I say 'In the beginning hydrogen'.”
― Harlow Shapley

“There's no obvious reason to assume that the very same rare properties that allow for our existence would also provide the best overall setting to make discoveries about the world around us. We don't think this is merely coincidental. It cries out for another explanation, an explanation that... points to purpose and intelligent design in the cosmos.”
― Guillermo Gonzalez, The Privileged Planet: How Our Place in the Cosmos Is Designed for Discovery

“It’s hard to build models of inflation that don't lead to a multiverse. It’s not impossible, so I think there’s still certainly research that needs to be done. But most models of inflation do lead to a multiverse, and evidence for inflation will be pushing us in the direction of taking [the idea of a] multiverse seriously.”
― Alan H. Guth

“The sun symbolizes the Divine intelligence; the empty vastness of space symbolizes the Divine All-Possibility and also the Divine immutability; a bird symbolizes the soul; a tree symbolizes the grades of being; and water symbolizes knowledge and rain revelation.”
― Osman Bakar, Tawhid and Science

“We may take it that the world is undoubtedly itself [i.e., is indistinct from itself], but, in any attempt to see itself, as an object, it must, equally, undoubtedly act so as to make itself distinct from and therefore false to itself.

In this sense, in respect to its own information, the universe must expand to escape the telescopes through which we, who are it, are trying to capture it, which is us.”
― G. Spencer Brown, Laws of Form

“We want union with something, even if the opposite seems true.  Bring two atomic nuclei together and their positive electrostatic forces will repel each other, but, with the patience and strength of the blind god of the galaxies, there comes a point where something bigger takes over and welds them together. Physicists call it the Strong Nuclear Force; I’ve called this magic glue God. All the elements heavier than hydrogen were so formed, forged in the great hearts of the stars: sulphur, potassium, gold, radium. Everything you can think of.  ”
― Sean J. Halford, Stronger Than Lions

“Anybody who has done high school physics knows Newton’s Third Law. For every action there is an equal and opposite reaction. You push against a wall; it pushes back against you. I love the poetry hidden in these truths, in the many laws we’ve discovered that underpin the universal fabric. We search for meaning ever hungrier, perhaps even with desperation: the symmetry in the equations freaks us out; for all we know, there is just us on this lonely little marble in the inky void.”
― Sean J. Halford, Stronger Than Lions