My dwarves don't >think about anything but their focus and things that would assist their focus. They sometimes draw their focus on paper or on the ground with chalk or charcoal. The first thing they think when someone interacts with them is how they can help them with their focus. They will think about all the parts of their focus--- the beginning, middle and end, the various middles beginnings and ends which can be taken, how they will fund it, etc. Their initial bio is shaped by the foci of their family and dwarven friends.
Some people might think I'm taking it too far--- but the docs say that dwarves never stop thinking about their focus. And I really like playing them this way.