Carl Sagan Quotes, Binary Quotes, Yes Or No Quotes

Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no.

4 years ago

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Tags : Carl Sagan Quotes , Binary Quotes , Yes Or No Quotes

The vast distances that separate the stars are providential. Beings and worlds are quarantined from one another. The quarantine is lifted only for those with sufficient self-knowledge and judgment to have safely traveled from star to star.

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Tags : Carl Sagan Quotes , Travel Quotes , Stars Quotes

If the greenhouse effect is a blanket in which we wrap ourselves to keep warm, nuclear winter kicks the blanket off.

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Tags : Carl Sagan Quotes , Winter Quotes , Science Quotes

If intelligence is our only edge, we must learn to use it better, to shape it, to understand its limitations and deficiencies -- to use it as cats use stealth, as katydids use camouflage -- to make it the tool of our survival.

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Both the Freudian and the Platonic metaphors emphasize the considerable independence of and tension among the constituent parts of the psyche, a point that characterizes the human condition.

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Tags : Carl Sagan Quotes , Psychology Quotes , Independence Quotes

A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet.

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Tags : Carl Sagan Quotes , War Quotes , Earth Quotes

We are star stuff which has taken its destiny into its own hands. The loom of time and space works the most astonishing transformations of matter.

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Tags : Carl Sagan Quotes , Stars Quotes , Taken Quotes

A googolplex is precisely as far from infinity as is the number 1... no matter what number you have in mind, infinity is larger still.

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Tags : Carl Sagan Quotes , Numbers Quotes , Mind Quotes

By exploring other worlds we safeguard this one. By itself, I think this fact more than justifies the money our species has spent in sending ships to other worlds. It is our fate to live during one of the most perilous and, at the same time, one of the most hopeful chapters in human history.

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Tags : Carl Sagan Quotes , Fate Quotes , Thinking Quotes

After I give lectures-on almost any subject-I am often asked, "Do you believe in UFOs?" I'm always struck by how the question is phrased, the suggestion that this is a matter of belief and not evidence. I'm almost never asked, "How good is the evidence that UFOs are alien spaceships?"

4 years ago

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Tags : Carl Sagan Quotes , Believe Quotes , Giving Quotes

I believe that in every person is a kind of circuit which resonates to intellectual discovery-and the idea is to make that resonance work

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But I could be wrong.

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The universe is not required to be in perfect harmony with human ambition.

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Tags : Carl Sagan Quotes , Ambition Quotes , Science Quotes

Anything else you're interested in is not going to happen if you can't breathe the air and drink the water. Don't sit this one out. Do something. You are by accident of fate alive at an absolutely critical moment in the history of our planet.

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Tags : Carl Sagan Quotes , Fate Quotes , Rivers Quotes

Organic as a dandelion seed, [the ship of our imagination] will carry us to worlds of dreams and worlds of facts

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Tags : Carl Sagan Quotes , Dream Quotes , Imagination Quotes

Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.

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Tags : Carl Sagan Quotes , Night Quotes , Doors Quotes

It is clear that the nations of the world now can only rise and fall together. It is not a question of one nation winning at the expense of another. We must all help one another or all perish together.

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Tags : Carl Sagan Quotes , Peace Quotes , Fall Quotes

What distinguishes our species is thought. The cerebral cortex is in a way a liberation. We need no longer be trapped in the genetically inherited behavior patterns of lizards and baboons: territoriality and aggression and dominance hierarchies. We are each of us largely responsible for what gets put in to our brains. For what as adults we wind up caring for and knowing about. No longer at the mercy of the reptile brain we can change ourselves. Think of the possibilities.

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Tags : Carl Sagan Quotes , Caring Quotes , Thinking Quotes

The candle flame gutters. Its little pool of light trembles. Darkness gathers. The demons begin to stir.

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Tags : Carl Sagan Quotes , Light Quotes , Flames Quotes

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.

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Tags : Carl Sagan Quotes , Book Quotes , Library Quotes