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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We are made of stellar ash. Our origin and evolution have been tied to distant cosmic events. The exploration of the cosmos is a voyage of self-discovery.

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Tags : Carl Sagan Quotes , Discovery Quotes , Self Quotes

Clutching our crystals and religiously consulting our horoscopes, our critical faculties in steep decline, unable to distinguish between what's true and what feels good, we slide, almost without noticing, into superstition and darkness.

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Tags : Carl Sagan Quotes , Feel Good Quotes , Darkness Quotes

We have heard the rationales offered by the nuclear superpowers. We know who speaks for the nations. But who speaks for the human species? Who speaks for Earth?

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For all our failings, despite our limitations and fallibilities, we humans are capable of greatness.

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The surface of the Earth is the shore of the cosmic ocean. On this shore, we've learned most of what we know. Recently, we've waded a little way out, maybe ankle-deep, and the water seems inviting. Some part of our being knows this is where we came from. We long to return, and we can, because the cosmos is also within us. We're made of star stuff. We are a way for the cosmos to know itself.

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Tags : Carl Sagan Quotes , Stars Quotes , Ocean Quotes

The cosmos is all there is, all there ever was, and all there ever will be.

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Science is a way of thinking that helps you not to fool yourself.

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Tags : Carl Sagan Quotes , Thinking Quotes , Way Quotes

For all I know we may be visited by a different extraterrestrial civilization every second Tuesday, but there's no support for this appealing idea. The extraordinary claims are not supported by extraordinary evidence.

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Tags : Carl Sagan Quotes , Civilization Quotes , Ideas Quotes

Goddard represented a unique combination of visionary dedication and technological brilliance. He studied physics because he needed physics to get to Mars. In reading the notebooks of Robert Goddard, I am struck by how powerful his exploratory and scientific motivations were - and how influental speculative ideas, even erroneous ones, can be on the shaping of the future.

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First rule in government spending: why build one when you can have two at twice the price?

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I’m struck again by the irony that spaceflight-conceived in the cauldron of nationalist rivalries and hatreds-brings with it a stunning transnational vision. You spend even a little time contemplating the Earth from orbit and the most deeply engrained nationalisms begin to erode. They seem the squabbles of mites on a plum.

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Tags : Carl Sagan Quotes , Hatred Quotes , Vision Quotes