Famous quotes containing the words model and/or airplane:
“The playing adult steps sideward into another reality; the playing child advances forward to new stages of mastery....Child’s play is the infantile form of the human ability to deal with experience by creating model situations and to master reality by experiment and planning.”
—Erik H. Erikson (20th century)
“If we did not have such a thing as an airplane today, we would probably create something the size of N.A.S.A. to make one.”
—H. Ross Perot (b. 1930)