Human nature, gotta love it :)

Yea well, is there a thing like human nature? And if there is, is it really defined by greed and selfishness? Or is greed and selfishness something we learn? Was prehistoric man greedy? Or did they hunt in groups and shared with the whole group? Why does a kid raised by wolves act like a wolf? Nurture or nature, or both? If it's both, does our collectively shaped Skinner Box reinforce greed over everything else?

Just some questions :-) Thanks so much for this comment @ancientknowled3 :-)