"The clarity, honesty, and directness of the author's style is admirable. From the book emerges the most enlightening and credible picture we as yet have of the 'free spirits' of the late Middle Ages." —Review for Religious
"This is a most important book, both for the completeness of its survey of the available primary sources and for the innovative and persuasive interpretations Robert Lerner brings to his work." —Speculum
". . . this is a good book, witty, lucid, and convincing." —History