Sociologists distinguish among a job, a career, and a calling. You do a job for the money, and when the money stops, you stop working. You pursue a career for the promotions, and when the promotions stop, topped out, you quit or become a time-serving husk. A calling, in contrast, is done for its own sake. You would do it anyway, with no pay and no promotions. “Try to stop me!” is what your heart cries when you are thwarted.