Famous quotes containing the words real and/or nature:
“Pretension may sit still, but cannot act. Pretension never feigned an act of real greatness. Pretension never wrote an Iliad, nor drove back Xerxes, nor christianized the world, nor abolished slavery.”
—Ralph Waldo Emerson (1803–1882)
“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)