black
grey
blue
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Extinction is the rule. Survival is the exception.

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

Beach Earth Grain Number Planet Sand Science Stars Universe
What an astonishing thing a book is.
CARL SAGAN

Astonish Book One Liner
I don’t want to believe. I want to know.
CARL SAGAN

Atheist Believe Knowledge Proof Science Want
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.
CARL SAGAN

Cosmic Disagree Finding Galaxy Human Love Mercy Perspective Precious
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
Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
CARL SAGAN

Book Century Flower Lie Promise Seed Soil
The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.
CARL SAGAN

Atom Beauty Cosmic Couple Live Marriage Togetherness
All civilizations become either spacefaring or extinct.
CARL SAGAN

Civilization Extinct Science Space
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

Assemble Book Leaf Print Tree
The very act of understanding is a celebration of joining, merging, even if on a very modest scale, with the magnificence of the Cosmos.
CARL SAGAN

Act Celebration Cosmic Magnificant Merge Modest Scale Understand
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

Assure Delusion Grasp Persistence Satisfaction Universe
All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
CARL SAGAN

Enormous Gift Habour Number Passion People Science Smart World
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

desperatel Determination Preference Prejudice Puzzle True Truth Want Work
A galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.
CARL SAGAN

Compose Dust Galaxy Gas Stars Sun
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

Awareness Book Civilization Concern Culture Depth Future Health Library Test
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

Extinction is the rule. Survival is the exception.

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Extinction is the rule. Survival is the exception.

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