Famous quotes containing the words single and/or observation:
“Tired,
she looked up the path
her lover would take
as far as her eyes could see.
On the roads,
traffic ceased
at the end of day
as night slid over the sky.
The traveller’s pained wife
took a single step towards home,
said, “Could he not have come at this instant?”
and quickly craning her neck around,
looked up the path again.”
—Amaru (c. seventh century A.D.)
“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)