Carl Sagan Quotes, Morning Quotes, Sunrise Quotes

A still more glorious dawn awaits / not a sunrise, but a galaxy-rise / a morning filled with 400 billion suns / the rising of the milky way

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The simplest thought, like the concept of the number one, has an elaborate logical underpinning.

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We are not smart enough to decide which pieces of knowledge are permissible and which are not.

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Science is far from a perfect instrument of knowledge. It's just the best we have.

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You mustn't think of the Universe as a wilderness. It hasn't been that for billions of years," he said. "Think of it more as... ..cultivated.

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Tags : Carl Sagan Quotes , Thinking Quotes , Years Quotes

How smart does a chimpanzee have to be before killing him constitutes murder?

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The Cosmos is all that is or ever was or ever will be.

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Because men, compared to male chimps, have such relatively small testicles (large testicles indicate a species where many males mate, one after the other, with the same female), we might guess that promiscuous societies were uncommon in the immediate human past.

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Tags : Carl Sagan Quotes , Past Quotes , Men 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

I promise to question everything my leaders tell me. I promise to use my critical faculties. I promise to develop my independence of thought. I promise to educate myself so I can make my own judgments.

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Tags : Carl Sagan Quotes , Leader Quotes , Independence Quotes

There are many hypotheses in science which are wrong. That’s perfectly all right: it’s the aperture to finding out what’s right. Science is a self-correcting process.

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Tags : Carl Sagan Quotes , Truth Quotes , Self Quotes

The fossil record implies trial and error, an inability to anticipate the future, features inconsistent with an efficient Great Designer (although not with a Designer of a more remote and indirect temperament)

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Tags : Carl Sagan Quotes , Errors Quotes , Inability Quotes

If you are only skeptical, then no new ideas make it through to you. You become a crotchety old person convinced that nonsense is ruling the world. (There is, of course, much data to support you.) But every now and then, a new idea turns out to be on the mark, valid and wonderful. If you are too much in the habit of being skeptical about everything, you are going to miss or resent it, and either way you will be standing in the way of understanding and progress.

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Tags : Carl Sagan Quotes , Science Quotes , Data Quotes

When you look more generally at life on Earth, you find that it is all the same kind of life. There are not many different kinds; there's only one kind. It uses about fifty fundamental biological building blocks, organic molecules.

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Tags : Carl Sagan Quotes , Block Quotes , Molecules Quotes

But, Jefferson worried that the people - and the argument goes back to Thucydides and Aristotle - are easily misled. He also stressed, passionately and repeatedly, that it was essential for the people to understand the risks and benefits of government, to educate themselves, and to involve themselves in the political process. Without that, he said, the wolves will take over.

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Our perceptions are fallible. We sometimes see what isn't there. We are prey to optical illusions. Occasionally we hallucinate. We are error-prone.

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Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

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The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.

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The immense distances to the stars and the galaxies mean that we see everything ins pace int he past, some as they were before the Earth came to be. Telescopes are time machines.

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Tags : Carl Sagan Quotes , Stars Quotes , Distance Quotes

When a honeybee dies it releases a death pheromone, a characteristic odour that signals the survivors to remove it from the hive. The corpse is promptly pushed and tugged out of the hive. The death pheromone is oleic acid. What happens if a live bee is dabbed with a drop of oleic acid? Then no matter how strapping and vigourous it might be, it is carried kicking and screaming out of the hive.

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Tags : Carl Sagan Quotes , Science Quotes , Survivor Quotes