Denis Diderot said this quote

“ There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. ”

Famous Quotes of Denis Diderot

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How had they met? By chance, like everybody else. What were there names? What's it to you? Where were they coming from? From the nearest place. Where were they going? Does anyone really know where they're going?

~ Denis Diderot

Scepticism is the first step towards truth.

~ Denis Diderot

One swallows the lie that flatters, but sips the bitter truth drop by drop.

~ Denis Diderot

All things must be examined, debated, investigated without exception and without regard for anyone's feelings.

~ Denis Diderot