respect the newspaper is national, not tribal 
attempting a visual unity of all those who speak a 
common tongue. But the tribe is constituted via the 
ear, and even the all-at-onceness of the telegraph 
fosters this pattern. Hence the teenager. A new 
tribal man suddenly within a highly mechanical and 
literate culture.

Marshall McLuhan to John Wain, March 11, 1960, 
Letters of Marshall McLuhan , (Toronto, 1987), p. 
267.