Art is whatever you can get away with. — Marshall McLuhan

The professional tends to classify and to specialize, to accept uncritically the ground rules of the environment. The ground rules provided by the mass response of his colleagues serves as a pervasive environment of which he is contentedly unaware. (p. 93)

There is absolutely no inevitability, so long as there is a willingness to contemplate what is happening. [A chapter sub-heading attributed by McLuhan to Alfred North Whitehead]

Until writing was invented, man lived in acoustic space: boundless, directionless, horizonless, in the dark of the mind, in the world of emotion, by primordial intuition, terror. Speech is a social chart of this bog. (p. 48)