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We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

Carl Sagan

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
Stars are phoenixes, rising from their own ashes.
CARL SAGAN

Ash Rise Science Stars
The Earth is a very small stage in a vast cosmic arena.
CARL SAGAN

Arena Cosmic Earth Stage Vast
We all have a thirst for wonder. It’s a deeply human quality. Science and religion are both bound up with it.
CARL SAGAN

Bound Human Quality Religion Science Thirist Wonder
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
We are star stuff which has taken its destiny into its own hands.
CARL SAGAN

Destiny Hands Science Stars Stuff
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
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
Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
CARL SAGAN

Advance Agriculture History Live Lost Medicine Save Science Vast War
If you wish to make an apple pie from scratch, you must first invent the universe.
CARL SAGAN

Apple Invention Science Scratch Universe
Science is a way of thinking much more than it is a body of knowledge.
CARL SAGAN

Body Knowledge Science Thinking
The cure for a fallacious argument is a better argument, not the suppression of ideas.
CARL SAGAN

Argument Cure Ideas Suppression
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
Not explaining science seems to me perverse. When you’re in love, you want to tell the world.
CARL SAGAN

Explanation Love Peverse Science Want World
The Earth is the only world known so far to harbor life.
CARL SAGAN

Earth Harbor Life
I would suggest that science is, at least in my part, informed worship.
CARL SAGAN

Information Science Suggestion Worship

We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

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We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

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Popular Authors

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