Organize your workday in a way which leaves some of it for you and your family. I don't think that we we could say more strongly or convincingly that you are not your career. The hours that you have every day should serve you and those things that you care deeply about as much as they serve the organization that writes your checks. While I'm a dedicated worker, my life is much bigger than my job and I always look for ways to improve my work efficiency and the overall balance of my busy life.