Francis Schaeffer was one of the most influential apologists of the 20th century. Through his speaking, writing, and filmmaking, Schaeffer successfully transformed the way people thought of the Christian faith, from a rather private kind of piety to a worldview that addressed every sphere of life. This volume—written by a man converted from agnosticism within days of meeting Schaeffer—is the first book devoted to exploring the heart and soul of Schaeffer's approach to the Christian life, and will help readers strive after the same kind of marriage of thought and life, of orthodoxy and love.