On the plane into Dublin, watching the puffy white clouds that cover the country drift lazily below me, I formulated a question that I wanted to answer as I traveled throughout Ireland. What drove Irish creativity? It is a small country, and it has a population only about the size of metro Atlanta. Still, it managed to produce four Nobel Prize laureates in literature: Yeats, Shaw, Beckett, and Heaney; and sports a host of other artists, writers and musicians who have reshaped their respective fields. So what was it? The people? The history? The culture? The weather?