ABSTRACT
Men have tended to order their thoughts in terms of pictorial models since the beginnings of organized thought. The model itself was usually drawn from something in their immediate experience, available from their technology, and acceptable to their society and culture. Once adopted, it served, more or less efficiently, to order and correlate the experiences which men had, and the habits they had learned, and perhaps to suggest a selection of new guesses and behavior patterns for new or unfamiliar situations.
