Rob Kall has a nice collection of quotations about story on his Storycon site. Here are a few of my favorites:
"The universe is made of stories, not atoms."
-- Muriel Rukeyser, poet
"There is no agony like bearing an untold story inside of you."
-- Maya Angelou, American poet
"A human being is nothing but a story with a skin around it."
-- Fred Allen, humorist
"The highest-paid person in the first half of the next century will be the 'storyteller.' The value of products will depend on the story they tell. Nike and many other gloabal companies are already manily storytellers. That is where the money is -- even today."
-- Rolf Jensen
These are great quotes. A.S. Byatt also has some interesting essays on the nature of storytelling in a collection called (I think) Stories and Histories.
Interesting stuff here. Thanks.