A rational theology, as understood in this volume, is a theology which (1) is based on fundamental principles that harmonize with the knowledge and reason of man, (2) derives all of its laws, ordinances and authority from the accepted fundamental principles, and (3) finds expression and use in the everyday life of man. In short, a rational theology is derived from the invariable laws of the universe, and exists for the good of man. (From preface) - Summary by John A. Widtsoe
