Luther, indignant, preaches Justification by Faith

His immense popularity

Grace the cardinal principle of the Reformation

The Reformation began as a religious movement

How the defence of Luther's doctrine led to the recognition of the supreme authority of the Scriptures

Public disputation at Leipsic between Luther and Eck

Connection between the advocacy of the Bible as a supreme authority and the right of private judgment

Religious liberty a sequence of private judgment

Connection between religious and civil liberty

Contrast between Leo I. and Luther