The debate over what constitutes the influence of nature versus that of nurture is a perennially controversial theme. As far back as the ancient Greeks, there were arguments about what was learned and what was inherited or given by nature. These discussions have not tempered in modern times. Little more than a century and a half ago, it took Darwin thirty years to gather the courage and stamina to publish his Origin of Species, which formulated the theory of evolution. Interestingly enough, that book does not even mention man, but rather concentrates on the evolution of finches.