Carl Sagan Quotes, Self Quotes, Perfect Quotes

Science is not perfect. It's often misused; it's only a tool, but it's the best tool we have. Self-correcting , ever changing, applicable to everything: with this tool, we vanquish the impossible.

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There is a lurking fear that some things are not “meant" to be known, that some inquiries are too dangerous for human beings to make.

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

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The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge; it has no in the endeavor of science. We do not know in advance who will discover fundamental insights.

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Tags : Carl Sagan Quotes , Knowledge Quotes , Science Quotes

Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term. One of the criteria for national leadership should therefore be a talent for understanding, encouraging, and making constructive use of vigorous criticism.

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Tags : Carl Sagan Quotes , Suicidal Quotes , Science Quotes

If we offer too much silent assent about mysticism and superstition - even when it seems to be doing a little good - we abet a general climate in which scepticism is considered impolite, science tiresome, and rigorous thinking somehow stuffy and inappropriate.

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Tags : Carl Sagan Quotes , Thinking Quotes , Superstitions Quotes

Whenever our ethnic or national prejudices are aroused, in times of scarcity, during challenges to national self esteem or nerve, when we agonize about our diminished cosmic place and purpose, or when fanaticism is bubbling up around us - then, habits of thought familiar from ages past reach for the controls.

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All of the rocky and metallic material we stand on, the iron in our blood, the calcium in our teeth, the carbon in our genes were produced billions of years ago in the interior of a red giant star. We are made of star stuff.

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We are, each of us, a multitude. Within us is a little universe.

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She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love.

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The sacred truth of science is that there are no sacred truths.

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But down deep, at the molecular heart of life we're essentially identical to trees.

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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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In a complex universe, in a society undergoing unprecedented change, how can we find the truth if we are not willing to question everything and to give a fair hearing to everything?

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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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National boundaries are not evident when we view the Earth from space. Fanatical ethnic or religious or national chauvinisms are a little difficult to maintain when we see our planet as a fragile blue crescent fading to become an inconspicuous point of light against the bastion and citadel of the stars.

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In the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist's signature.

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Our intelligence is imperfect, surely, and newly arisen; the ease with which it can be sweet-talked, overwhelmed, or subverted by other hardwired propensities - sometimes themselves disguised as the cool light of reason - is worrisome.

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Tags : Carl Sagan Quotes , Sweet Quotes , Truth Quotes

The neurochemistry of the brain is astonishingly busy, the circuitry of a machine more wonderful than any devised by humans. But there is no evidence that its functioning is due to anything more than the 10(14) neural connections that build an elegant architecture of consciousness.

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Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the shackles of time. A book is proof that humans are capable of magic.

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Tags : Carl Sagan Quotes , Book Quotes , Writing Quotes