There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGANExploration 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.
More Carl Sagan Quotes
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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 -
Not explaining science seems to me perverse. When you’re in love, you want to tell the world.
CARL SAGAN -
Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.
CARL SAGAN -
Understanding is a kind of ecstasy.
CARL SAGAN -
Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
CARL SAGAN -
The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.
CARL SAGAN -
For small creatures such as we the vastness is bearable only through love.
CARL SAGAN -
We are star stuff harvesting sunlight.
CARL SAGAN -
Arguments from authority carry little weight, authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
CARL SAGAN -
Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
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 -
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 -
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
CARL SAGAN -
The only thing we’ve found that makes the emptiness bearable, is each other.
CARL SAGAN -
You have to know the past to understand the present.
CARL SAGAN







