Carl Sagan
415 citations

'In his celebrated book, 'On Liberty', the English philosopher John Stuart Mill argued that silencing an opinion is a peculiar evil. If the opinion is right, we are robbed of the opportunity of exchanging error for truth; and if it's wrong, we are deprived of a deeper understanding of the truth in its collision with error. If we know only our own side of the argument, we hardly know even that: it becomes stale, soon learned by rote, untested, a pallid and lifeless truth.' ✨ Carl Sagan (2011). The Demon-Haunted World: Science as a Candle in the Dark, p.550, Ballantine Books

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LifeReadingTruth

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