"There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common."
- Diderot, Denis
Hey! Are you on Facebook? Add our facebook application for finding and sharing and bookmarking ALL our quotes!
Click here and use the "email it" tab on the right side
Get Quotes of the Day in a badge or anywhere you like. Learn more here.
© MMVII Quotations Book