whi hemingway got us to all think it was cool to drive an ambulance in world war i, living in paris in the '20s, being an aficionado of the bull fights. marlin fishing off cuba, and let's not forget, writing. how many of us want to write the great american novel because earnest wrote one. both men were given the nobel prize for literature. yesterday, these two men were joined by another leader of another kind, bob dylan. the author of "rolling stone," "blowing in the wind" the times they are achanging, and how uptd, it ain't me be. all the times i listened to that song, i thought it was to a rejected lover. but maybe not. some believe it was dylan's way of saying to all of us he didn't want the burden of being the laureate of the left for the latest liberal doctrine. i'm an entertainer, i can remember him saying, and he knew that people believed in the words of his songs, but they were also enjoying them,