" Pay attention to when you feel most absorbed at work. If you want to be blissful, your job should involve spending as much time as possible in that space where you are leveraging your core competencies, and working in the way you choose on something demanding enough that, as Earle puts it in Sea Change, “one discovery leads to another, each new scrap of information triggering awareness of dozens of new unknowns. "
― Laura Vanderkam , 168 Hours: You Have More Time Than You Think