Art theory reemphasizes the importance of being sent back to the drawing board.
Henri Matisse, Life modeling
and learned to associate them with reward and plasticity in vision.
The figure model that stands firmly on aesthetic grounds is not interpreted on a symbolic level.
"The artist can't paint what he sees"
Ernst Gombrich, Art and illusion
Traditionally, models have been regarded as an unnecessary dilution of the true task of formal mathematics — to provide generalized proofs that make no appeal to particular examples.