One of the things that stood out to me the most about Maria Gull's Norse Mythology lecture was the outlook of the Scandinavian people. They were humbled by nature and the knowledge that every one will die, but instead of letting that be a hindrance to achievement, it was a motivation to do their best. I thought this was a very wise thing to live by as a culture and it is prevalent in their successful conquests and innovations.
However, I did think that the idea of warriors dying in battle because they were the best fighters was a little counter-intuitive. Though I'm sure it was a comfort for the families of Viking warriors as well as a point of pride.