Leppin explores the four ""solas"" of Reformation theology--Christ, grace, faith, and scripture--as both anchored in the culture of late-medieval devotion and representing new, firmly demarcated formulae. Luther's four pillars became clarion calls in the fight against the medieval church. Leppin helps readers understand, however, that in the journey toward these new theological understandings, continuity and discontinuity were inextricably linked...