Carl Sagan Quotes, Children Quotes, Vision Quotes

The visions we offer our children shape the future.

5 years ago

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Tags : Carl Sagan Quotes , Children Quotes , Vision Quotes

Science is a way to call the bluff of those who only pretend to knowledge. It is a bulwark against mysticism, against superstition, against religion misapplied to where it has no business being.

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Tags : Carl Sagan Quotes , Superstitions Quotes , Way Quotes

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

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The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.

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Tags : Carl Sagan Quotes , Beach Quotes , Stars Quotes

What counts is not what sounds plausible, not what we would like to believe, not what one or two witnesses claim, but only what is supported by hard evidence rigorously and skeptically examined. Extraordinary claims require extraordinary evidence.

5 years ago

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Tags : Carl Sagan Quotes , Believe Quotes , Two 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

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.

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Tags : Carl Sagan Quotes , Philosophy Quotes , Religion Quotes

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

Stars are phoenixes, rising from their own ashes.

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Science is more than a body of knowledge. It's a way of thinking: a way of skeptically interrogating the universe.

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Tags : Carl Sagan Quotes , Thinking Quotes , Body Quotes

Science arouses a soaring sense of wonder. But so does pseudoscience. Sparse and poor popularizations of science abandon ecological niches that pseudoscience promptly fills. If it were widely understood that claims to knowledge require adequate evidence before they can be accepted, there would be no room for pseudoscience.

5 years ago

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Tags : Carl Sagan Quotes , Doe Quotes , Pseudoscience Quotes

If there is life, then I believe we should do nothing to disturb that life. Mars then, belongs to the Martians, even if they are microbes.

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Tags : Carl Sagan Quotes , Believe Quotes , Mars Quotes

In the vastness of the Cosmos there must be other civilizations far older and more advanced than ours.

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Tags : Carl Sagan Quotes , Civilization Quotes , Cosmos Quotes

Life is but a momentary glimpse of the wonder of this astonishing universe, and it is sad to see so many dreaming it away on spiritual fantasy.

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Tags : Carl Sagan Quotes , Dream Quotes , Spiritual Quotes

Books tap the wisdom of our species -- the greatest minds, the best teachers -- from all over the world and from all our history. And they're patient.

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Tags : Carl Sagan Quotes , Teacher Quotes , Book Quotes

I believe that part of what propels science is the thirst for wonder. It's a very powerful emotion. All children feel it. In a first grade classroom everybody feels it; in a twelfth grade classroom almost nobody feels it, or at least acknowledges it. Something happens between first and twelfth grade, and it's not just puberty. Not only do the schools and the media not teach much skepticism, there is also little encouragement of this stirring sense of wonder. Science and pseudoscience both arouse that feeling. Poor popularizations of science establish an ecological niche for pseudoscience.

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Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.

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The size and age of the Cosmos are beyond ordinary human understanding. Lost somewhere between immensity and eternity is our tiny planetary home.

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Tags : Carl Sagan Quotes , Home Quotes , Science Quotes

Eratosthenes's only tools were sticks, eyes, feet, and brains; plus a zest for experiment. With those tools he correctly deduced the circumference of the Earth, to high precision, with an error of only a few percent. That's pretty good figuring for 2200 years ago.

5 years ago

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Tags : Carl Sagan Quotes , Eye Quotes , Errors Quotes

We are rare and precious because we are alive, because we can think as well as we can. We are privileged to influence and perhaps control our future. I believe we have an obligation to fight for life on Earth - not just for ourselves, but for all those, humans and others, who came before us, and to whom we are beholden, and for all those who, if we are wise enough, will come after.

5 years ago

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Tags : Carl Sagan Quotes , Wise Quotes , Believe Quotes