Famous quotes containing the words thought and/or experiments:
“Play builds the kind of free-and-easy, try-it-out, do-it-yourself character that our future needs. We must become more self-conscious and more explicit in our praise and reinforcement as children use unstructured play materials: “That’s good. You use your own ideas....” “That’s good. You did it your way....” “That’s good. You thought it all out yourself.””
—James L. Hymes, Jr. (20th century)
“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)