In this book, quotations from Saint Irenaeus have been arranged thematically in order to show the unity of his Christian view of the world. The texts have been selected and are introduced by the late Hans Urs von Balthasar, who is widely regarded as one of the greatest Catholic theologians of this century. They are translated by John Saward. "Everything in Irenaeus is bathed in a warm and radiant joy, a wise and majestic gentleness. His words of struggle are hard as iron and crystal clear, ... so penetrating that they cannot fail to enlighten the unbiased observer."
- Hans Urs von Balthasar
Hans Urs von Balthasar (1905–1988) was a Swiss theologian widely regarded as one of the greatest theologians and spiritual writers of modern times. Named a cardinal by Pope John Paul II, he died shortly before being formally inducted into the College of Cardinals. He wrote over one hundred books, including Prayer, Heart of the World, Mary for Today, Love Alone Is Credible, Mysterium Paschale and his major multi-volume theological works: The Glory of the Lord, Theo-Drama and Theo-Logic.