"Most people find it difficult to understand purely verbal concepts. They suspect the ear; they don’t trust it. In general we feel more secure when things are visible, when we can 'see for ourselves.' We admonish children, for instance, to 'believe only half of what they see, and nothing of what they hear.' All kinds of 'shorthand” systems of notation have been developed to help us see what we hear.'"
- Marshall McLuhanand Quentin Fiorce. The Medium is the Massage: An Inventory of Effects. Penguin Books: Toronto, 2003, pg 117