I don't think looking up to Feynman as a role model is a good idea. The stories Feynman told about himself and the way he portrayed himself were not necessarily true. I've read an account of someone who was his neighbor and knew him well (was a physicist, too), and it wasn't very flattering. It sounded like Feynman was pretty insecure and cared a great deal what people think about him and that they consider him a genius and a very interesting man.

Zorba the Greek is a fictional character. Not a great role model at all, since he's purely a made up construct.