Carl Sagan Quotes

592 quotes · Astronomer, Astrophysicist

Page 23 of 50

Carl Sagan Quotes

All Philosophical Courageous Spiritual Creative Wise 592 quotes · page 23 of 50

Carl Sagan

Astronomer, Astrophysicist

Courageous

“It is the responsibility of scientists never to suppress knowledge, no matter how awkward that knowledge is, no matter how it may bother those in power; we are not smart enough to decide which pieces of knowledge are permissible, and which are not.”

Responsibility Smart Knowledge

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Carl Sagan

Astronomer, Astrophysicist

Lonely

“In all our searching, the only thing we've found that makes the emptiness bearable is each other.”

Found Emptiness Contact

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Grateful

“To live in the hearts of others is to never die in those we leave behind.”

Heart Dies Behinds

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Philosophical

“Extraordinary claims demand extraordinary evidence”

Demand Claims

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Philosophical

“Atoms are mainly empty space. Matter is composed chiefly of nothing.”

Matter Space

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Philosophical

“The values of science and the values of democracy are concordant, in many cases indistinguishable. Science and democracy began - in their civilized incarnations - in the same time and place, Greece in the seventh and sixth centuries B.C. . . . Science thrives on, indeed requires, the free exchange of ideas; its values are antithetical to secrecy. Science holds to no special vantage points or privileged positions. Both science and democracy encourage unconventional opinions and vigorous debate. Both demand adequate reason, coherent argument, rigorous standards of evidence and honesty.”

Ideas Democracy Honesty

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Philosophical

“[Science] is not perfect. It can be misused. It is only a tool. But it is by far the best tool we have, self-correcting, ongoing, applicable to everything. It has two rules. First: there are no sacred truths; all assumptions must be critically examined; arguments from authority are worthless. Second: whatever is inconsistent with the facts must be discarded or revised. ... The obvious is sometimes false; the unexpected is sometimes true.”

Two Self Science

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Love

“In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie.”

Space Joy Time

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Funny

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

Two Government Firsts

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Philosophical

“That kind of skeptical, questioning, "don't accept what authority tells you" attitude of science - is also nearly identical to the attitude of mind necessary for a functioning democracy. Science and democracy have very consonant values and approaches, and I don't think you can have one without the other.”

Thinking Attitude Democracies Have

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Philosophical

“There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across and some ten or fifteen billion years old, this may be the case forever. We are constantly stumbling on new surprises”

Years Light Forever

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Philosophical

“The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.”

Fall Memories Voice

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