I think that everyone at any age should ask themselves 'where do I want to be today where do I want to be tomorrow and where do I want to be in a hundred years?' We all have clear answers to those questions. We only have so much time. It's a real shame if we don't spend our lives trying to do that.
Our most basic common link is that we all inhabit this planet. We all breathe the same air. We all cherish our children's future. And we are all mortal.