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Quotes About Existence

Atoms are mainly empty space. Matter is composed chiefly of nothing.
~ Carl Sagan
It is said that men may not be the dreams of the god, but rather that the gods are the dreams of men.
~ Carl Sagan
The Cosmos is all that is or ever was or ever will be.
~ Carl Sagan
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
The lifetime of a human being is measured by decades, the lifetime of the Sun is a hundred million times longer. Compared to a star, we are like mayflies, fleeting ephemeral creatures who live out their lives in the course of a single day.
~ Carl Sagan
We humans look rather different from a tree. Without a doubt we perceive the world differently than a tree does. But down deep, at the molecular heart of life, the trees and we are essentially identical.
~ Carl Sagan
The universe is not required to be in perfect harmony with human ambition.
~ Carl Sagan
We are all stardust
~ Carl Sagan
If we are merely matter intricately assembled, is this really demeaning? If there's nothing here but atoms, does that make us less or does that make matter more?
~ Carl Sagan
Except for hydrogen, all the atoms that make each of us up—the iron in our blood, the calcium in our bones, the carbon in our brains—were manufactured in red giant stars thousands of light-years away in space and billions of years ago in time. We are, as I like to say, starstuff.
~ Carl Sagan
Their position seems to be that their God is so great he doesn't even have to exist.
~ Carl Sagan
and it is here that we are, in some pain and with no guarantees, working out our destiny.
~ Carl Sagan
An atheist is someone who is certain that God doesn't exist, someone who has compelling evidence against the existence of God. I know of no such compelling evidence.
~ Carl Sagan
Our God Is Alive and Well. Sorry About Yours.
~ Carl Sagan
What does seventy million years mean to beings who live only one-millionth as long? We are like butterflies who flutter for a day and think it is forever.
~ Carl Sagan
The Apollo pictures of the whole Earth conveyed to multitudes something well known to astronomers: On the scale of the worlds - to say nothing of stars or galaxies - humans are inconsequential, a thin film of life on an obscure and solitary lump of rock and metal
~ Carl Sagan
Cosmos is a Greek word for the order of the universe. It is, in a way, the opposite of Chaos.
~ Carl Sagan
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 of rock and metal.
~ Carl Sagan
When you look more generally at life on Earth, you find that it is all the same kind of life. There are not many different kinds; there's only one kind. It uses about fifty fundamental biological building blocks, organic molecules.
~ Carl Sagan
If the Earth were as old as a person, a typical organism would be born, live and die in a sliver of a second. We are fleeting, transitional creatures, snowflakes fallen on the hearth fire.
~ Carl Sagan
The nature of life on Earth and the search for life elsewhere are two sides of the same question—the search for who we are.
~ Carl Sagan
We are a way for the cosmos to know itself
~ Carl Sagan
Man is the matter of the cosmos, contemplating itself.
~ Carl Sagan
Part of the resistance to Darwin and Wallace derives from our difficulty in imagining the passage of the millennia, much less the aeons. What does seventy million years mean to beings who live only one-millionth as long? We are like butterflies who flutter for a day and think it is forever.
~ Carl Sagan