'The Scm Press A-Z of Origen' provides students with ready access to and sure guidance through the life of Origen, the range of his theological explorations, his influences, his works and the controversies associated with him in life and in death. Origen of Alexandria lived 185-254 AD and is considered one of the greatest Christian theologians and philosophers. Origen's most famous work is On First Principles. All his writings are here placed squarely in the flow of his life, within the geography of his ecclesiastical relations and regional controversies.