People who "work to live" function under the notion that work is simply an unfortunate necessity in order to support the rest of your life. When the work day ends, then it ends. Work will be waiting back at your desk for you in the morning, whether you fret about it all night or not. Evenings, weekends, and holidays, are to be completely uninfected by anything work related.
Money makes the world go round. Sad, but it seems to be true. With that understanding I know I need to work to feed the wife and kid, keep the lights on in the house, and pay for my hobbies. I certainly do not go to work because I look forward to something to do each day... Hell I can find something to do at home if that's all it was.
This life/work style is to be compared with those that live to work.