What is the theme in The Puritan Dilemma; the Story of John Winthrop by Edmund Sears Morgan?

Righteousness in a Fallen World is a theme in this book. A central Puritan theological belief, following their Calvinist influences, is Total Depravity. The doctrine of total depravity holds that all humans are born with the brokenness and corruption of sin. This means that their hearts are naturally turned away from God and towards the self.