Carl Sagan Quotes, Wisdom Quotes, Understanding Quotes

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

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Accommodation to change, the thoughtful pursuit of alternative futures are keys to the survival of civilization and perhaps of the human species.

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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 fact that someone says something doesn't mean it's true. Doesn't mean they're lying, but it doesn't mean it's true.

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

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There are lots of ways to communicate what we know, but few ways to communicate what we feel. Music is one way to communicate emotions.

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When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.

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My parents were not scientists. They knew almost nothing about science. But in introducing me simultaneously to skepticism and to wonder, they taught me the two uneasily cohabiting modes of thought that are central to the scientific method.

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Tags : Carl Sagan Quotes , Science Quotes , Two Quotes

A proclivity for science is embedded deeply within us, in all times, places, and cultures. It has been the means for our survival. It is our birthright. When, through indifference, inattention, incompetence, or fear of skepticism, we discourage children from science, we are disenfranchisin g them, taking from them the tools needed to manage their future.

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We humans appear on the cosmic calendar so recently that our recorded history occupies only the last few seconds of the last minute of December 31st.

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Nobody listens to mathematicians.

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We live in an in-between universe where things change all right...but according to patterns, rules, or as we call them, laws of nature.

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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.

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Cleverly designed experiments are the key.

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A book is made from a tree. It is an assemblage of flat, flexible parts (still called "leaves") imprinted with dark pigmented squiggles. One glance at it and you hear the voice of another person, perhaps someone dead for thousands of years. Across the millennia, the author is speaking, clearly and silently, inside your head, directly to you. Writing is perhaps the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another. Books break the shackles of time ― proof that humans can work magic.

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There are huge advertising budgets only when there's no difference between the products. If the products really were different, people would buy the one that's better. Advertising teaches people not to trust their judgment. Advertising teaches people to be stupid.

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Extraordinary claims demand extraordinary evidence

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I worry that, especially as the Millennium edges nearer, pseudo-science and superstition will seem year by year more tempting, the siren song of unreason more sonorous and attractive.

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It's sometimes easier to reject strong evidence than to admit that we've been wrong, this is information about ourselves worth having.

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Religions are tough. Either they make no contentions which are subject to disproof or they quickly redesign doctrine after disproof. ... near the core of the religious experience is something remarkably resistant to rational inquiry.

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