The word "enthusiasm" comes from the Greek entheos, which means literally, "the god within." I really like that definition. I doubt it's possible to master the art of time management if you aren't gushingly enthusiastic about what you're going to do with your time. Go after what really inspires you. Don't chase money. Chase your passion. If you aren't enthusiastic about your work, then you're wasting your life. Switch to something else. Consider a new career altogether. Don't beat yourself up if your current career has become stale. Remember that failure is your friend. Listen to that god within you, and switch to something that excites you once again. The worst waste of time is doing something that doesn't make you happy. Your work should serve your life, not the other way around.

--Steve Pavlina