Before you are old, attend as many funerals as you can bear, and listen. Nobody talks about the departed’s achievements. The only thing people will remember is what kind of person you were while you were achieving.
In the end, I've found that it doesn't really matter who you marry. If you like them at the beginning, you probably won't like them at the end. And if you start off hating them, there's always the chance you'll end up thinking they're all right.