What, then, is the basic difference between today's computer and an intelligent being? It is that the computer can be made to seebut not to perceive. What matters here is not that the computer is without consciousness but that thus far it is incapable of the spontaneous grasp of pattern--a capacity essential to perception and intelligence.
Rudolf ArnheimThe fundamental peculiarity of the photographic medium; the physical objects themselves print their image by means of the optical and chemical action of light.
Rudolf ArnheimThe arts are neglected because they are based on perception, and perception is disdained because it is not assumed to involve thought.
Rudolf ArnheimOnce it is recognized that productive thinking in any area of cognition is perceptual thinking, the central function of art in general education will become evident.
Rudolf Arnheim