The overarching theme is whether we start with a blank slate. From watching my young puppy it's pretty clear that she has collie eye and that it's in her genes. Why? in truth I can't prove it but her enthusiasm for work is nothing like other dogs. Even other border collies. She comes from a working farm and we encourage her enthusiasm. It could be that we've ancouraged her attention and her responses but there are some that she figured out herself in a very collie like way.
Again another interesting philosophy. I keep reflecting on my path through life and the decisions I've made. It's becoming clearer and clearer that what I do now I did when I was very young. Obviously I've matured and gained experience but the essence of who I am, what I enjoy and what I do is still very similar. So the question for me is where did that come from and how much was I born with.