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

All civilizations become either spacefaring or extinct.

Related Topics

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

One of the greatest gifts adults can give – to their offspring and to their society – is to read to children.
CARL SAGAN

Adult Children Gift Reading Society Spring
The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
CARL SAGAN

Apple Blood Calcium DNA Interior Nitrogen Stars Teeth
Books break the shackles of time, proof that humans can work magic.
CARL SAGAN

Book Break Human Magic Proof Time Work
The price we pay for anticipation of the future is anxiety about it.
CARL SAGAN

Anticipation Anxiety Future Pay Price
There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGAN

Atom DNA Galaxy Molecule Science Stars Typical
Nature is unsentimental. Death is built in.
CARL SAGAN

Build Death Nature Sentimental Truth
Somewhere, something incredible is waiting to be known.
CARL SAGAN

Astronomy Incredible Inspirational Science
People are not stupid. They believe things for reasons.
CARL SAGAN

Believe Deep People Reason Stupidity
If we ruin the earth, there is no place else to go.
CARL SAGAN

Earth Environment Nature Place Ruin
Except in pure mathematics, nothing is known for certain (although much is certainly false).
CARL SAGAN

Certain Except False Mathematics Pure
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
CARL SAGAN

Brain Feeling Goodness Joy Muscle Understand
Extraordinary claims require extraordinary evidence.
CARL SAGAN

Claim Evidence Extraordinary One Liner Requirement Science
What an astonishing thing a book is.
CARL SAGAN

Astonish Book One Liner
Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
CARL SAGAN

Ability Bird Fly Motivational Separate Walk Work Hard
Science is a way of thinking much more than it is a body of knowledge.
CARL SAGAN

Body Knowledge Science Thinking
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

Argument Authority Expert Future Mistake Past Weight

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