Historical Division between "Logical thinking" and "Visuals"

Rudolf Arnheim suggested a historical division between "Logical thinking" and "Visuals" in his ground-breaking book, Visual Thinking (1969). He pointed out that philosophers in ancient Greek credited the direct vision as the start and end source of wisdom although they also learned possible distortion in human’s visual perception (Arnheim, 1969. pp. 12).
However, hundreds of years later, the potential of using sketching in creative problem solving are still paid less attention. Sketching is often not considered as a form of thinking. In his book, Visual Thinking, Arnheim (1969. pp. 2-3) reflected on the issue as the followed:

“Today, the prejudicial discrimination between perception and thinking is still with us. We shall find it in examples from philosophy and psychology. Our entire educational system continues to be based on the study of words and numbers … More and more the arts are considered as a training in agreeable skills, as entertainment and mental release. As the ruling disciplines stress more rigorously the study of words and numbers, their kinship with the arts is increasingly obscured, and the arts are reduced to a desirable supplement…. The arts are neglected because they are based on perception, and perception is disdained because it is not assumed to involve thought. In fact, educators and administrators cannot justify giving the arts an important position in the curriculum unless they understand that the arts are the most powerful means of strengthening the perceptual component without which productive thinking is impossible in any field of endeavor. The neglect of the arts is only the most tangible symptom of the widespread unemployment of the senses….”

Nowadays, most of us still follow similar path in contemporary educational system and are serious about producing solutions in neat computer graphics or a profound report. But Visual Thinking, as a young facilitation method in group sessions, begins to bridge the creative qualities of instant sketches in business practice.