http://thinkexist.com/quotes/marshall_mcluhan/2.html

“There is an enormous redundancy in every well-written book. With a well-written book I only read the right-hand page and allow my mind to work on the left-hand page. With a poorly written book I read every word.”

“The computer is the most extraordinary of man's technological clothing; it's an extension of our central nervous system. Beside it, the wheel is a mere hula-hoop.”

“All media exist to invest our lives with artificial perceptions and arbitrary values”