What drives people to public service is a sense of possibility. If you haven't sensed that possibility you don't get started in the same way, you don't feel you can have an impact.
“On the other hand, the waging of peace as a science, as an art, is in its infancy. But we can trace its growth, its steady progress, and the time will come when there will be particular individuals designated to assume responsibility for and leadership of this movement.”