Dr Carl Sagan Quotes

You can't convince a believer of anything; for their belief is not based on evidence, it's based on a deep seated need to believe.

- Dr Carl Sagan

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Belief | | Convince | Believer | Based |

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When Kepler found his long-cherished belief did not agree with the most precise observation, he accepted the uncomfortable fact. He preferred the hard truth to his dearest illusions; that is the heart of science. - Dr Carl Sagan

True human progress, that which can be linked to evolution, and which prolongs it, can only consist in perfecting and ameliorating man himself and not in improving the tools he employs, nor in increasing his physical well-being. - Dr Carl Sagan

You can't convince a believer of anything; for their belief is not based on evidence, it's based on a deep seated need to believe. - Dr Carl Sagan