I always sigh when I see Human nature in this context. There is a lot of good to human nature, but it gets forgotten due to the other side of human nature which ended up getting its own catch phrase.

Did you hear about the man that helped his neighbour? "Ya, I did, what can you say, human nature I guess." We don't get that when humans are naturally good (which they are an awful lot).

That being said, the phrase did not come from nowhere. I appreciated your article a lot. Thanks!