the intellectual and emotional causes underpinning this tension. The opening of the book outlines its objectives, emphasizing the need to examine both the facts and causes behind the development of free thought as it relates to Christianity. Farrar sets the stage for a comprehensive analysis of significant historical currents, beginning with early opposition from pagan philosophies, through notable periods in the Middle Ages and the Renaissance, and culminating in modern expressions of skepticism and secularism. He highlights the importance of understanding the historical context of these ideas as well as the moral implications they may bear on faith and belief. (This is an automatically generated summary.)