Are we selfish and evil?

By nature we are selfish but not evil. And when I say selfish I mean we look out for our own self interest. This is not a bad thing, it's what keeps us alive. We aren't that aware of our selfishness because in the modern age most of us have the bare necessities. But take away our food and shelter, put us back into nature like we were a long time ago and you'll see how evident our selfishness is.