Famous quotes containing the words observation and/or terms:
“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.”
—Denis Diderot (1713–1784)
“Consider his life which was valueless
In terms of employment, hotel ledgers, news files.
Consider. One bullet in ten thousand kills a man.
Ask. Was so much expenditure justified
On the death of one so young and so silly
Lying under the olive tree, O world, O death?”
—Stephen Spender (1909–1995)