Famous quotes containing the words thought and/or experiments:
“If men will believe it, sua si bona norint, there are no more quiet Tempes, nor more poetic and Arcadian lives, than may be lived in these New England dwellings. We thought that the employment of their inhabitants by day would be to tend the flowers and herds, and at night, like the shepherds of old, to cluster and give names to the stars from the river banks.”
—Henry David Thoreau (1817–1862)
“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)