Quotation Details

Quotation #29239 from Classic Quotes:

A thing is not proved just because no one has ever questioned it. What has never been gone into impartially has never been properly gone into. Hence scepticism is the first step toward truth. It must be applied generally, because it is the touchstone.
Denis Diderot
French author, encyclopedist, & philosopher (1713 - 1784)  

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