Famous quotes containing the words thought and/or experiments:
“I thought of rhyme alone,
For rhyme can beat a measure out of trouble
And make the daylight sweet once more....”
—William Butler Yeats (1865–1939)
“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)