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Books permit us to voyage through time, to tap the wisdom of our ancestors.

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

Awareness Book Civilization Concern Culture Depth Future Health Library Test
An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.
CARL SAGAN

Against Atheist Certain Evidence Existence God
Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
CARL SAGAN

Elegant Imagination Nature Stuble
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
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
If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest libraries of our time. The trick is to know which books to read.
CARL SAGAN

Book Content Finish Library Lifetime Percent Reading Time Trick Week
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
And you are made of a hundred trillion cells. We are, each of us, a multitude.
CARL SAGAN

Biology Cell Science
The universe seems neither benign nor hostile, merely indifferent.
CARL SAGAN

Hostile Indifference Universe
One of the great commandments of science is: Mistrust arguments from authority.
CARL SAGAN

Argument Authority Command Greatness Science Trust
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
The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
CARL SAGAN

Exclusive Mutual Notion Science Spiritual
Books permit us to voyage through time, to tap the wisdom of our ancestors.
CARL SAGAN

Book Permit Time Voyage Wisdom
The only thing we’ve found that makes the emptiness bearable, is each other.
CARL SAGAN

Couple Each Other Enptiness Finding Relationship Valentine
Except in pure mathematics, nothing is known for certain (although much is certainly false).
CARL SAGAN

Certain Except False Mathematics Pure
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
CARL SAGAN

Awake Citizen Deserve Mind Species Understand Work World

Books permit us to voyage through time, to tap the wisdom of our ancestors.

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Books permit us to voyage through time, to tap the wisdom of our ancestors.

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