How can one combine professional life with the advancement of liberty? Of course it is presumptuous to offer a definitive answer since all jobs and careers in the market economy are subject to the forces of the division of labor. Because a person focuses on one task doesn't mean that he or she isn't great at many tasks; it means only that the highest productive gains for everyone come from dividing tasks up among many people of a wide range of talents.
So it is with the freedom movement. The more of us there are, the more we do well to specialize, to cooperate through exchange, to boost our impact by dividing the labor.