Age When superstition is allowed to perform the task of old age in dulling the human temperament, we can say goodbye to all excellence in poetry, in... Denis Diderot 18
Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this... Denis Diderot 33
Natur There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts;... Denis Diderot 15
Change There are things I can't force. I must adjust. There are times when the greatest change needed is a change of my viewpoint. Denis Diderot 17
Freedom Man will never be free until the last king is strangled with the entrails of the last priest. Denis Diderot 19