I once sat under a large sycamore tree with the poet Allen Ginsberg and a small cluster of his students. He was thick around the middle with goofy glasses and bulging wet lips that reminded me of rolled up sandwich meat. Still, he held court with languid eminence, just as sure of himself in these final years of his life as he must have been when he spit HOWL into the face of a prudish world in 1957. The other time I encountered Ginsberg, he sat alone on stage at the Miami Boo