They were barbarians not that long ago. Now they call themselves "sons of the world." They think themselves cultured, when only a hundred years ago, they were scraping food from bones and the bottoms of their unshod feet.
Sons of the World indeed.
We have records of visiting them, generations past. They scrambled for our sumptuous clothing and culture. They watched us from their caves, envious of our covered, moving homes, built of wood and guilt in gold. We held fine writing tools while these barbarians still threw rocks at food.
We adopted them in a way, taught them to write. We gave them basic principles of travel, writing, language, and tools. We wondered what they would do with it.
Instead of spreading word to more cultures and giving the gifts of knowledge freely, they horde them. These Sons of the World are bullies with bigger arms and no hearts. Their 100 year old buildings are so lavish that they collapse in on themselves, so they make grander the second time and even more lavish. And even more likely to fall. Before long, they will murder each other into extinction with their greed.
They are a disappointment to the knowledge we gave them. Somehow, we managed to transfer all of the wealth and technology, but forgot to give them the heart they would need to hold onto it.
We will try again. I only pray this time, we don't fail.