New media may at first appear as mere codes of transmission for older achievement and established patterns of thought. But nobody could make the mistake of supposing that phonetic writing merely made it possible for the Greeks to set down in visual order what they had though and known before writing. In the same way printing made literature possible. It did not merely encode literature.
Marshall McLuhanOn Spaceship Earth there are no passengers; everybody is a member of the crew. We have moved into an age in which everybody's activities affect everybody else.
Marshall McLuhanExcept for light, all other media come in pairs, with one acting as the "content" of the other, obscuring the operation of both.
Marshall McLuhan