I spend (and have spent) a lot of time thinking. I also spent a lot of time reading. Every so often I reach conclusions... sometimes I remember them, sometimes not. A lot of them just got incorporated into my general world-view, I suppose. A long time ago it was thoughts about philosophy... these days I suppose it's mainly psychology.
I've been thinking a lot about cognitive dissonance - I think there have been differences between where I am and how I think of myself. People tend to act to reduce dissonance; it is a motivator, which I find very interesting - for a given task, it does not seem to fit neatly into either intrinsic or extrinsic motivation - it comes from how we feel about ourselves, not the task itself.