By their example, you have to be pretty ruthless about work/housework/childraising division, though: my parents split weekends and weekdays, so when I was young it was either the day we spent with mom or the day we spent with dad, with a few evenings and dinners together, and as we got older we had a lot of unsupervised freedom (not really a bad thing, imo, but it might mean not living in a crowded suburb or a city). However, it's certainly possible to be on the forefront of the /field/ you are in and still raise reasonably well adjusted kids evenly, it just takes a lot of effort from /both/ parents and a lot of conscious organization and division of tasks. They did have very flexible work schedules (including being completely able to work on weekends), though, which probably made it a lot easier than the (traditional) "You will work from 9am-5pm on Monday through Friday" most corporations (still) expect.