Furthermore... nurture is often about releasing the potential provided by nature. We can learn to do just about anything, but the things we take to easiest are those that we are predisposed to do by nature.

N.B. That last point isn't about things like specific tool usage (e.g. driving a car) but still applies to the extent of our natural skills. It's hard to judge us, as compared to other creatures, because we're the only ones who are (apparently) introspective enough to consider nuture as a driving force. None of the other animals would worry about it.