René Descartes Quotes



Best 6 Quotes by René Descartes

“All is to be doubted.”

“An optimist may see a light where there is none, but why must a pessimist always rush to blow it out?”

“Any community that gets its laughs by pretending to be idiots will eventually be flooded by actual idiots who mistakenly believe they are in good company.”

“I think; therefore I am.”

“If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.”

“One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another.”

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“It then came into my mind what that most careful observer of natural phenomena, Amontons, had written about the correction of the barometer; for he had observed that the height of the column of mercury in the barometer was a little (though sensibly enough) altered by the varying temperature of the mercury. From this I gathered that a thermometer might be perhaps constructed with mercury.”


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