Famous quotes containing the words thought and/or experiments:
“The Lady Amelia would not for worlds have had the de Courcy blood defiled; but gold she thought could not defile.”
—Anthony Trollope (1815–1882)
“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)