Quote
"For many things we can find substitutes, but there is not now, nor will there ever be, a substitute for creative thought."
C
Crawford GreenewaltC
Crawford Greenewalt
Crawford Greenewalt
Crawford Greenewalt
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1Quotes
Crawford Hallock Greenewalt was an American chemical engineer who was president of the DuPont Company from 1948 to 1962, and chairman from 1962 to 1967.
