Talk of a Christian worldview has fallen on hard times of late within some of the diverse circles of Reformed thought. Some see it as the driver of a lopsided approach to Christian faith and religious life, which places an undue emphasis on the cognitive. Others indict it with the charge of smuggling into Reformed thought an unhappy vestige of post-Kantian philosophy. Herman Bavinck entertained neither of these reservations when he penned this book in the early twentieth century.