habits of perception than anybody else. In Prints and Visual  
Communication  (pp. 55­6) he writes:

          Each written or printed word is a series of 
     conventional instructions for the making in a specified 
     linear order of muscular movements which when fully 
     carried out result in a succession of sounds. These 
     sounds, like the forms of the letters, are made according 
     to arbitrary recipes or directions, which indicate by 
     convention certain loosely defined classes of muscular 
     movements but not any specifically specified ones. Thus 
     any printed set of words can actually be pronounced in an 
     infinitely large number of ways, of which, if we leave aside 
     purely personal peculiarities, Cockney, Lower East Side, 
     North Shore, and Georgia, may serve as typical 
     specimens. The result is that each sound we hear when