Ratzinger's reflections show that contemporary debates over the nature of conscience have deep historical and philosophical roots. He says that a person is bound to act in accord with his conscience, but he makes it clear that there must be reliable, proven sources for the judgment of conscience in moral issues, other than the subjective reflections of each individual.
The always unique and profound insights that the new Pope Benedict XVI brings to perennial problems reminds the reader of his strong warning before the recent Papal conclave of the great dangers today of the "dictatorship of relativism."
Joseph Ratzinger (Pope Benedict XVI) is widely recognized as one of the most brilliant theologians and spiritual leaders of our age. As pope he authored the best-selling Jesus of Nazareth; and prior to his pontificate, he wrote many influential books that continue to remain important for the contemporary Church, such as Introduction to Christianity and The Spirit of the Liturgy.