There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGANI’ve always thought an agnostic is an atheist without the courage of his convictions.
More Carl Sagan Quotes
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We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.
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I think the health of our civilization, the depth of our awareness about the underpinnings of our culture and our concern for the future can all be tested by how well we support our libraries.
CARL SAGAN -
We are star stuff which has taken its destiny into its own hands.
CARL SAGAN -
A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles.
CARL SAGAN -
The price we pay for anticipation of the future is anxiety about it.
CARL SAGAN -
The only thing we’ve found that makes the emptiness bearable, is each other.
CARL SAGAN -
All civilizations become either spacefaring or extinct.
CARL SAGAN -
The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
CARL SAGAN -
Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
CARL SAGAN -
Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
CARL SAGAN -
Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
CARL SAGAN -
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 -
Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.
CARL SAGAN -
The universe is a pretty big place. If it’s just us, seems like an awful waste of space.
CARL SAGAN -
If it can be destroyed by the truth, it deserves to be destroyed by the truth.
CARL SAGAN







