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Carl Sagan Quote - All civilizations become either spacefaring or extinct.

All civilizations become either spacefaring or extinct.

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Civilization Extinct Science Space

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Marilyn Monroe Paulo Coelho Abraham Lincoln C. S. Lewis Khalil Gibran Charlie Chaplin Gautama Buddha Isaac Newton

There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
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Delicate Forbidden Matter Scare Science Sensitive Truth
Books permit us to voyage through time, to tap the wisdom of our ancestors.
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Book Permit Time Voyage Wisdom
We are star stuff which has taken its destiny into its own hands.
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Destiny Hands Science Stars Stuff
To live in the hearts we leave behind is to live forever.
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Break Up Couple Deep Forever Heart Leaving Live Love
The Earth is the only world known so far to harbor life.
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Earth Harbor Life
Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
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Book Century Flower Lie Promise Seed Soil
One of the great commandments of science is: Mistrust arguments from authority.
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Argument Authority Command Greatness Science Trust
Where we have strong emotions, we’re liable to fool ourselves.
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Atheist Emotion Fools Liable Ourselves Strong
We make our world significant by the courage of our questions and the depth of our answers.
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Courage Depth Significance World
Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
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Elegant Imagination Nature Stuble
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
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Awake Citizen Deserve Mind Species Understand Work World
Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
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Blind Citizen Distant Greatness Human Invention People Togetherness Writing
We are star stuff harvesting sunlight.
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Harvest Stars Stuff Sunlight
All civilizations become either spacefaring or extinct.
CARL SAGAN

Civilization Extinct Science Space
We live on a mote of dust suspended in a sunbeam.
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Dust Live Sun Suspend
What an astonishing thing a book is.
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Astonish Book One Liner

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