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Carl Sagan Quote - Except in pure mathematics, nothing is known for certain (although much is certainly false).

Except in pure mathematics, nothing is known for certain (although much is certainly false).

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Certain Except False Mathematics Pure

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

We are all stardust.
CARL SAGAN

One Liner Stardust
You have to know the past to understand the present.
CARL SAGAN

Deep Inspirational One Liner Past Present 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
Nothing disturbs me more than the glorification of stupidity.
CARL SAGAN

Disturb Glory Stupidity
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
CARL SAGAN

Dependent Exquisite Live Science Society Technology
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 visions we offer our children shape the future.
CARL SAGAN

Children Future Inspirational Ofer Shape Vision
Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.
CARL SAGAN

Avoid Cause Human Ignorance Misery Ourselves Particular Stupidity
The universe is a pretty big place. If it’s just us, seems like an awful waste of space.
CARL SAGAN

Awful Place Pretty Science Space Universe Waste
The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
CARL SAGAN

Courage Determination Fragile Live Planet Significance Wisdom
You are worth about 3 dollars worth in chemicals.
CARL SAGAN

Chemical Science Worth
Any faith that admires truth, that strives to know God, must be brave enough to accommodate the universe.
CARL SAGAN

Accommodation Admire Enough Faith God Strive Truth Universe
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
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
Human beings have a demonstrated talent for self-deception when their emotions are stirred.
CARL SAGAN

Deception Demonstrate Emotion Human

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