That is what stuck with me in Marshall’s work. A 
million other things stuck with me, but that stuck 
with me always—that you’re doing something and 
it may not necessarily be what you intended to do 
even at this moment. The long-term effects of your 
work are always problematic and everyone knows 
that. But even at this moment, when you’re making 
television or radio or newspapers or magazines or 
CD-ROMs, you may not be having the effect that 
you imagine you are. It may be something quite 
different, and that’s what the medium is the 
message means; that the medium has a message of 
its own that the owners don’t really necessarily 
know they are conveying.