Backbone

In his personal life Edward Paxmore had discovered that a man lived best when he maintained some central belief upon which he could hang all action and to which he could refer all difficult moral problems; he was then vertebrate, with a backbone to sustain him, and he had observed that men and women who failed to develop this central belief wandered and made hideously wrong decisions because in time of crisis they had nothing to which they could refer instantaneously. He had found his backbone in obedience to God, in the simplest form possible and with the most direct access.

~James A. Michener
Chesapeake