Most of the qualities of a good civic good leader, I'm convinced, can be learned. A reasonably empathetic person can master the arts of relationship-building, group management and persuasion. An observant person can learn the processes behind public policy and, in time, see opportunities for action. With a little modesty, a good leader can find her role and, with a little audacity, fill it brilliantly.
But there's one quality that the best leaders possess that I don't think can be learned easily, and that is temperament. It's an old-fashioned word that refers to a person's nature or disposition, especially as it affects his or her behavior. And the temperament that the best leaders possess allows them to "quiet the self."