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Extinction is the rule. Survival is the exception.

Carl Sagan

I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.
CARL SAGAN

Assume Come Consideration Danger Extreme Ourselves Outside Problem Solution
If you wish to make an apple pie from scratch, you must first invent the universe.
CARL SAGAN

Apple Invention Science Scratch Universe
Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
CARL SAGAN

Elegant Imagination Nature Stuble
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
There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
CARL SAGAN

Delicate Forbidden Matter Scare Science Sensitive Truth
You are worth about 3 dollars worth in chemicals.
CARL SAGAN

Chemical Science Worth
Nothing disturbs me more than the glorification of stupidity.
CARL SAGAN

Disturb Glory Stupidity
Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.
CARL SAGAN

Cosmic Enough Explore Investigation Nature Ocean Ready Sail Shore Stars Wander
Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.
CARL SAGAN

Ancestor Door Family Favourite Live Night Program Sky Television
The absence of evidence is not evidence of absence.
CARL SAGAN

Absence Evidence One Liner
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
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
Where we have strong emotions, we’re liable to fool ourselves.
CARL SAGAN

Atheist Emotion Fools Liable Ourselves Strong
The Earth is a very small stage in a vast cosmic arena.
CARL SAGAN

Arena Cosmic Earth Stage Vast
One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.
CARL SAGAN

Book Dead Glance Hear Perhaps Reading Time Voice Voyage
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

Extinction is the rule. Survival is the exception.

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Extinction is the rule. Survival is the exception.

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